부산대학교 도서관

Perez Marc G; Hospital Militar Central, Ciudad Autónoma Buenos Aires (1426), Argentina; ARVAC Clinical Trial Study Group. Argentina, Buenos Aires (1426), Argentina.; Coria LM; Instituto de Investigaciones Biotecnológicas, Universidad Nacional de San Martín (UNSAM) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Martín (1650), Buenos Aires, Argentina; Escuela de Bio y Nanotecnologías (EByN), Universidad Nacional de San Martín, San Martín (1650), Buenos Aires, Argentina.; Ceballos A; Instituto de Investigaciones Biomédicas en Retrovirus y SIDA, INBIRS-CONICET, Facultad de Medicina, UBA, Buenos Aires (1121), Argentina.; Rodriguez JM; Laboratorio Pablo Cassará S.R.L, Ciudad Autónoma de Buenos Aires (1408), Argentina.; Lombardo ME; Nobeltri S. R. L. Ciudad Autónoma de Buenos Aires (1430), Argentina; Centro de Educación Médica e Investigaciones Clínicas 'Norberto Quirno' (CEMIC), Ciudad Autónoma de Buenos Aires (1430), Argentina.; Bruno L; Instituto de Investigaciones Biotecnológicas, Universidad Nacional de San Martín (UNSAM) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Martín (1650), Buenos Aires, Argentina; Escuela de Bio y Nanotecnologías (EByN), Universidad Nacional de San Martín, San Martín (1650), Buenos Aires, Argentina.; Páez Córdoba F; Instituto de Investigaciones Biotecnológicas, Universidad Nacional de San Martín (UNSAM) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Martín (1650), Buenos Aires, Argentina; Escuela de Bio y Nanotecnologías (EByN), Universidad Nacional de San Martín, San Martín (1650), Buenos Aires, Argentina.; Fascetto Cassero CG; Instituto de Investigaciones Biotecnológicas, Universidad Nacional de San Martín (UNSAM) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Martín (1650), Buenos Aires, Argentina; Escuela de Bio y Nanotecnologías (EByN), Universidad Nacional de San Martín, San Martín (1650), Buenos Aires, Argentina.; Salvatori M; Instituto de Investigaciones Biomédicas en Retrovirus y SIDA, INBIRS-CONICET, Facultad de Medicina, UBA, Buenos Aires (1121), Argentina.; Rios Medrano M; Instituto de Investigaciones Biotecnológicas, Universidad Nacional de San Martín (UNSAM) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Martín (1650), Buenos Aires, Argentina; Escuela de Bio y Nanotecnologías (EByN), Universidad Nacional de San Martín, San Martín (1650), Buenos Aires, Argentina.; Fulgenzi F; Instituto de Investigaciones Biotecnológicas, Universidad Nacional de San Martín (UNSAM) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Martín (1650), Buenos Aires, Argentina; Escuela de Bio y Nanotecnologías (EByN), Universidad Nacional de San Martín, San Martín (1650), Buenos Aires, Argentina.; Alzogaray MF; Instituto Médico Platense, La Plata (1900), Buenos Aires, Argentina.; Mykietiuk A; Instituto Médico Platense, La Plata (1900), Buenos Aires, Argentina.; Uriarte IL; Clínica del Niño y la Madre, Mar del Plata (7600), Buenos Aires, Argentina; Escuela Superior de Medicina, Universidad Nacional de Mar del Plata, Mar del Plata (7600), Buenos Aires, Argentina.; Itcovici N; Centro de Investigaciones Clínicas Belgrano S.A, Ciudad Autónoma de Buenos Aires (1425), Argentina.; Smith Casabella T; Investigaciones Clínicas Salta (ICSAL), Ciudad de Salta (4400), Salta, Argentina.; Corral G; Instituto de Investigaciones Clínicas Mar del Plata, Mar del Plata (7600), Buenos Aires, Argentina.; Bruno M; Vacunar S.A. Ciudad Autónoma de Buenos Aires (1430), Argentina.; Roldán O; Clínica Privada del Sol S.A. Ciudad de Córdoba (5000), Córdoba. Argentina.; Núñez SA; Centro Médico Maffei - Investigación Clínica Aplicada, Ciudad Autónoma de Buenos Aires (1435), Argentina.; Cahn F; Fundación Huésped, Ciudad Autónoma de Buenos Aires (1202), Argentina.; Yerino GA; FP Clinical Pharma S.R.L. Ciudad Autónoma de Buenos Aires (1425), Argentina.; Bianchi A; ARVAC Clinical Trial Study Group. Argentina, Buenos Aires (1426), Argentina.; Braem V; ARVAC Clinical Trial Study Group. Argentina, Buenos Aires (1426), Argentina.; Christmann A; ARVAC Clinical Trial Study Group. Argentina, Buenos Aires (1426), Argentina.; Corradetti S; ARVAC Clinical Trial Study Group. Argentina, Buenos Aires (1426), Argentina.; Darraidou MC; ARVAC Clinical Trial Study Group. Argentina, Buenos Aires (1426), Argentina.; Di Nunzio L; ARVAC Clinical Trial Study Group. Argentina, Buenos Aires (1426), Argentina.; Estrada T; ARVAC Clinical Trial Study Group. Argentina, Buenos Aires (1426), Argentina.; López Castelo R; ARVAC Clinical Trial Study Group. Argentina, Buenos Aires (1426), Argentina.; Marchionatti C; ARVAC Clinical Trial Study Group. Argentina, Buenos Aires (1426), Argentina.; Pitocco L; ARVAC Clinical Trial Study Group. Argentina, Buenos Aires (1426), Argentina.; Trias Uriarte V; ARVAC Clinical Trial Study Group. Argentina, Buenos Aires (1426), Argentina.; Wood C; ARVAC Clinical Trial Study Group. Argentina, Buenos Aires (1426), Argentina.; Zadoff R; ARVAC Clinical Trial Study Group. Argentina, Buenos Aires (1426), Argentina.; Bues F; Nobeltri S. R. L. Ciudad Autónoma de Buenos Aires (1430), Argentina.; Garrido RM; Nobeltri S. R. L. Ciudad Autónoma de Buenos Aires (1430), Argentina.; Montomoli E; VisMederi Srl, Siena, Italy; Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy.; Manenti A; VisMederi Srl, Siena, Italy.; Demaría A; Instituto de Investigaciones Biotecnológicas, Universidad Nacional de San Martín (UNSAM) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Martín (1650), Buenos Aires, Argentina; Escuela de Bio y Nanotecnologías (EByN), Universidad Nacional de San Martín, San Martín (1650), Buenos Aires, Argentina.; Prado L; Instituto de Investigaciones Biotecnológicas, Universidad Nacional de San Martín (UNSAM) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Martín (1650), Buenos Aires, Argentina; Escuela de Bio y Nanotecnologías (EByN), Universidad Nacional de San Martín, San Martín (1650), Buenos Aires, Argentina.; Pueblas Castro C; Instituto de Investigaciones Biotecnológicas, Universidad Nacional de San Martín (UNSAM) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Martín (1650), Buenos Aires, Argentina; Escuela de Bio y Nanotecnologías (EByN), Universidad Nacional de San Martín, San Martín (1650), Buenos Aires, Argentina.; Saposnik L; Instituto de Investigaciones Biotecnológicas, Universidad Nacional de San Martín (UNSAM) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Martín (1650), Buenos Aires, Argentina; Escuela de Bio y Nanotecnologías (EByN), Universidad Nacional de San Martín, San Martín (1650), Buenos Aires, Argentina.; Geffner J; Instituto de Investigaciones Biomédicas en Retrovirus y SIDA, INBIRS-CONICET, Facultad de Medicina, UBA, Buenos Aires (1121), Argentina.; Montes de Oca F; Laboratorio Pablo Cassará S.R.L, Ciudad Autónoma de Buenos Aires (1408), Argentina.; Vega JC; Laboratorio Pablo Cassará S.R.L, Ciudad Autónoma de Buenos Aires (1408), Argentina.; Fló J; Laboratorio Pablo Cassará S.R.L, Ciudad Autónoma de Buenos Aires (1408), Argentina.; Bonvehí P; Centro de Educación Médica e Investigaciones Clínicas 'Norberto Quirno' (CEMIC), Ciudad Autónoma de Buenos Aires (1430), Argentina.; Cassará J; Laboratorio Pablo Cassará S.R.L, Ciudad Autónoma de Buenos Aires (1408), Argentina.; Pasquevich KA; Instituto de Investigaciones Biotecnológicas, Universidad Nacional de San Martín (UNSAM) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Martín (1650), Buenos Aires, Argentina; Escuela de Bio y Nanotecnologías (EByN), Universidad Nacional de San Martín, San Martín (1650), Buenos Aires, Argentina. Electronic address: kpasquevich@iib.unsam.edu.ar.; Cassataro J; Instituto de Investigaciones Biotecnológicas, Universidad Nacional de San Martín (UNSAM) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Martín (1650), Buenos Aires, Argentina; Escuela de Bio y Nanotecnologías (EByN), Universidad Nacional de San Martín, San Martín (1650), Buenos Aires, Argentina. Electronic address: jucassataro@iib.unsam.edu.ar.

Publisher: Elsevier Science Country of Publication: Netherlands NLM ID: 8406899 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1873-2518 (Electronic) Linking ISSN: 0264410X NLM ISO Abbreviation: Vaccine Subsets: MEDLINE

Terry Nolan; Chiranjiwi Bhusal; Alejandro Hoberman; Conrado J Llapur; Olga Voloshyna; Ezekiel Fink; Angela Gentile; Garry Wallace; Peter C Richmond; Joseph B Domachowske; Thembile Mzolo; Maria Lattanzi; Daniela Toneatto; Adebayo Akinsola; Madhavi Ampajwala; Mark Arya; Andrew Bartlett; Divya Batra; Mark Theo Bloch; Jose Bordon; William Byars; Jeremy Peter James Carr; Ana Ceballos; Ferdinandus de Looze; Mercedes Deluca; Joseph Domachowske; Rand Farjo; Jennifer Gilsoul; Elizabeth Anne Gunner; Anil K Gupta; Matthew Hong; Julie Kasarjian; Conrado Juan Llapur; Darvy Mann; Gonzalo Perez Marc; Paul G Matherne; Gretchen Mitchell; Mora Nair Obed; John OħMahony; Peter Richmond; Fernando Oscar Riera; Walter Rok; Louis Saravolatz; Peter Silas; Adriana Elvira Soto; Katherine Sullivan; Joseph Surber; Ricardo Augusto Teijeiro; Florence Tiong; Ushma Wadia; Clifford Yut

Clin Infect Dis

Yang, Guoming ; Yang, Dazhi ; Liu, Bai ; Meng, Yiqun ; Perez, Marc J. ; Perez, Richard ; Remund, Jan ; Xia, Xiang’ao ; Zhang, Hao

In Solar Energy 1 September 2025 297

Perez, Marc ; Palnaes Hansen, Carsten ; Burdio, Fernando ; Sanchez-Velázquez, Patricia ; Giuliani, Antonio ; Lancellotti, Francesco ; de Liguori-Carino, Nicola ; Malleo, Giuseppe ; Marchegiani, Giovanni ; Podda, Mauro ; Pisanu, Adolfo ; De Luca, Giuseppe Massimiliano ; Anselmo, Alessandro ; Siragusa, Leandro ; Kobbelgaard Burgdorf, Stefan ; Tschuor, Christoph ; Cacciaguerra, Andrea Benedetti ; Koh, Ye Xin ; Masuda, Yoshio ; Hao Xuan, Mark Yeo ; Seeger, Nico ; Breitenstein, Stefan ; Grochola, Filip Lukasz ; Di Martino, Marcello ; Secanella, Luis ; Busquets, Juli ; Dorcaratto, Dimitri ; Mora-Oliver, Isabel ; Ingallinella, Sara ; Salvia, Roberto ; Abu Hilal, Mohammad ; Aldrighetti, Luca ; Ielpo, Benedetto

In European Journal of Surgical Oncology July 2024 50(7)

Yang, Guoming ; Yang, Dazhi ; Perez, Marc J. ; Perez, Richard ; Kleissl, Jan ; Remund, Jan ; Pierro, Marco ; Cheng, Yuan ; Wang, Yi ; Xia, Xiang’ao ; Xu, Jianing ; Lyu, Chao ; Liu, Bai ; Zhang, Hao

In Energy Conversion and Management 15 May 2024 308

Goswami J; Infectious Disease, Research and Development, Moderna, Inc., Cambridge, Massachusetts.; Baqui AH; Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.; Doreski PA; Hospital Militar Central Cirujano Mayor Dr. Cosme Argerich.; Perez Marc G; Consultorios Médicos Dr. Doreski, Buenos Aires, Argentina.; Jimenez G; Spotlight Research Center, Miami, Florida.; Ahmed S; Department of International Health, Johns Hopkins University, Zakiganj, Sylhet, Bangladesh.; Zaman K; Infectious Diseases Division, Matlab Health Research Center, Matlab Bazar, Bangladesh.; Duncan CJA; Department of Infectious Diseases, Royal Victoria Infirmary, Newcastle upon Tyne, Northumberland, United Kingdom.; Ujiie M; Center for Global Health and Medicine, Shinjuku-Ku, Japan.; Rämet M; Finnish Vaccine Research Ltd.; Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.; Pérez-Breva L; Vaccine Research, FISABIO-Public Health, Valencia, Spain.; Lan L; Infectious Disease, Research and Development, Moderna, Inc., Cambridge, Massachusetts.; Du J; Infectious Disease, Research and Development, Moderna, Inc., Cambridge, Massachusetts.; Kapoor A; Infectious Disease, Research and Development, Moderna, Inc., Cambridge, Massachusetts.; Mehta S; Infectious Disease, Research and Development, Moderna, Inc., Cambridge, Massachusetts.; Tomassini JE; Infectious Disease, Research and Development, Moderna, Inc., Cambridge, Massachusetts.; Huang W; Infectious Disease, Research and Development, Moderna, Inc., Cambridge, Massachusetts.; Zhou H; Infectious Disease, Research and Development, Moderna, Inc., Cambridge, Massachusetts.; Stoszek SK; Infectious Disease, Research and Development, Moderna, Inc., Cambridge, Massachusetts.; Priddy F; Infectious Disease, Research and Development, Moderna, Inc., Cambridge, Massachusetts.; Lin N; Infectious Disease, Research and Development, Moderna, Inc., Cambridge, Massachusetts.; Le Cam N; Infectious Disease, Research and Development, Moderna, Inc., Cambridge, Massachusetts.; Shaw CA; Infectious Disease, Research and Development, Moderna, Inc., Cambridge, Massachusetts.; Slobod K; Infectious Disease, Research and Development, Moderna, Inc., Cambridge, Massachusetts.; Wilson E; Infectious Disease, Research and Development, Moderna, Inc., Cambridge, Massachusetts.; Miller JM; Infectious Disease, Research and Development, Moderna, Inc., Cambridge, Massachusetts.; Das R; Infectious Disease, Research and Development, Moderna, Inc., Cambridge, Massachusetts.

Publisher: Oxford University Press Country of Publication: United States NLM ID: 0413675 Publication Model: Print Cited Medium: Internet ISSN: 1537-6613 (Electronic) Linking ISSN: 00221899 NLM ISO Abbreviation: J Infect Dis Subsets: MEDLINE

Gonzalo Perez-Marc; Lorena M. Coria; Ana Ceballos; Juan Manuel Rodriguez; Mónica E. Lombardo; Laura Bruno; Federico Páez Córdoba; Clara G. Fascetto Cassero; Melina Salvatori; Mayra Rios Medrano; Fabiana Fulgenzi; María F. Alzogaray; Analía Mykietiuk; Ignacio Leandro Uriarte; Nicolás Itcovici; Tomás Smith Casabella; Gonzalo Corral; Miriam Bruno; Oscar Roldán; Sebastián A. Nuñez; Florencia Cahn; Gustavo A. Yerino; Alejandra Bianchi; Virginia Micaela Braem; Analía Christmann; Santiago Corradetti; Martín Claudio Darraidou; Lucila Di Nunzio; Tatiana Belén Estrada; Rocío López Castelo; Carla Graciela Marchionatti; Lucila Pitocco; Virgina Macarena Trias Uriarte; Cristian Jorge Wood; Romina Zadoff; Florencia Bues; Rosa M. Garrido; Agostina Demaría; Lineia Prado; Celeste Pueblas Castro; Lucas Saposnik; Jorge Geffner; Federico Montes de Oca; Julio C. Vega; Juan Fló; Pablo Bonvehí; Jorge Cassará; Karina A. Pasquevich; Juliana Cassataro

Libster, Romina; Pérez Marc, Gonzalo; Wappner, Diego; Coviello, Silvina; Bianchi, Alejandra; Braem, Virginia; Esteban, Ignacio; Caballero, Mauricio T.; Wood, Cristian; Berrueta, Mabel; Rondan, Aníbal; Lescano, Gabriela; Cruz, Pablo; Ritou, Yvonne; Fernández Viña, Valeria; Álvarez Paggi, Damián; Esperante, Sebastián; Ferreti, Adrián; Ofman, Gastón; Ciganda, Álvaro; Rodriguez, Rocío; Lantos, Jorge; Valentini, Ricardo; Itcovici, Nicolás; Hintze, Alejandra; Oyarvide, M. Laura; Etchegaray, Candela; Neira, Alejandra; Name, Ivonne; Alfonso, Julieta; López Castelo, Rocío; Caruso, Gisela; Rapelius, Sofía; Alvez, Fernando; Etchenique, Federico; Dimase, Federico; Alvarez, Darío; Aranda, Sofía S.; Sánchez Yanotti, Clara; De Luca, Julián; Jares Baglivo, Sofía; Laudanno, Sofía; Nowogrodzki, Florencia; Larrea, Ramiro; Silveyra, María; Leberzstein, Gabriel; Debonis, Alejandra; Molinos, Juan; González, Miguel; Perez, Eduardo; Kreplak, Nicolás; Pastor Argüello, Susana; Gibbons, Luz; Althabe, Fernando; Bergel, Eduardo; Polack, Fernando P.

N Engl J Med
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
New England Journal of Medicine

Shabir A, Madhi; Fernando P, Polack; Pedro A, Piedra; Flor M, Munoz; Adrian A, Trenholme; Eric A F, Simões; Geeta K, Swamy; Sapeckshita, Agrawal; Khatija, Ahmed; Allison, August; Abdullah H, Baqui; Anna, Calvert; Janice, Chen; Iksung, Cho; Mark F, Cotton; Clare L, Cutland; Janet A, Englund; Amy, Fix; Bernard, Gonik; Laura, Hammitt; Paul T, Heath; Joanne N, de Jesus; Christine E, Jones; Asma, Khalil; David W, Kimberlin; Romina, Libster; Conrado J, Llapur; Marilla, Lucero; Gonzalo, Pérez Marc; Helen S, Marshall; Masebole S, Masenya; Federico, Martinón-Torres; Jennifer K, Meece; Terry M, Nolan; Ayman, Osman; Kirsten P, Perrett; Joyce S, Plested; Peter C, Richmond; Matthew D, Snape; Julie H, Shakib; Vivek, Shinde; Tanya, Stoney; D Nigel, Thomas; Alan T, Tita; Michael W, Varner; Manu, Vatish; Keith, Vrbicky; Judy, Wen; Khalequ, Zaman; Heather J, Zar; Gregory M, Glenn; Louis F, Fries

New England Journal of Medicine. 383:426-439

Pérez Marc G; ITRIALS-Equipo Ciencia, CABA, Buenos Aires, Argentina.; Vizzotti C; Hub de Innovación en Políticas de Salud y Equidad, Universidad de San Martín, San Martín, Buenos Aires, Argentina.; Fell DB; Pfizer, New York, NY, USA.; Di Nunzio L; ITRIALS-Equipo Ciencia, CABA, Buenos Aires, Argentina.; Olszevicki S; Hub de Innovación en Políticas de Salud y Equidad, Universidad de San Martín, San Martín, Buenos Aires, Argentina.; Mankiewicz SW; Pfizer, New York, NY, USA.; Braem V; ITRIALS-Equipo Ciencia, CABA, Buenos Aires, Argentina.; Rearte R; Hub de Innovación en Políticas de Salud y Equidad, Universidad de San Martín, San Martín, Buenos Aires, Argentina.; Atwell JE; Pfizer, New York, NY, USA.; Bianchi A; ITRIALS-Equipo Ciencia, CABA, Buenos Aires, Argentina.; Fuentes N; Hub de Innovación en Políticas de Salud y Equidad, Universidad de San Martín, San Martín, Buenos Aires, Argentina; Escuela Superior de Medicina, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina.; Zadoff R; ITRIALS-Equipo Ciencia, CABA, Buenos Aires, Argentina.; Vecchio G; ITRIALS-Equipo Ciencia, CABA, Buenos Aires, Argentina.; Gabriela Abalos M; Pfizer, New York, NY, USA.; Fan R; Pfizer, New York, NY, USA.; Del Carmen Morales G; Pfizer, New York, NY, USA.; Gessner BD; Pfizer, New York, NY, USA.; Jodar L; Pfizer, New York, NY, USA.; Libster R; ITRIALS-Equipo Ciencia, CABA, Buenos Aires, Argentina.; Rearte A; Hub de Innovación en Políticas de Salud y Equidad, Universidad de San Martín, San Martín, Buenos Aires, Argentina; Escuela Superior de Medicina, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina. Electronic address: analiarearte@mdp.edu.ar.

Publisher: Elsevier Science Country of Publication: United States NLM ID: 101130150 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1474-4457 (Electronic) Linking ISSN: 14733099 NLM ISO Abbreviation: Lancet Infect Dis Subsets: MEDLINE

Rearte A; Hub de Innovación en Políticas de Salud y Equidad, Universidad de San Martín, San Martín, Buenos Aires, Argentina; Escuela Superior de Medicina, Universidad Nacional de Mar del Plata, Ayacucho 3537, Mar del Plata, Argentina. Electronic address: analiarearte@mdp.edu.ar.; Peréz Marc G; ITRIALS-Equipo Ciencia, CABA, Buenos Aires, Argentina.; Fell DB; Pfizer, New York, NY, USA.; Rearte R; Hub de Innovación en Políticas de Salud y Equidad, Universidad de San Martín, San Martín, Buenos Aires, Argentina.; Olszevicki S; Hub de Innovación en Políticas de Salud y Equidad, Universidad de San Martín, San Martín, Buenos Aires, Argentina.; Atwell JE; Pfizer, New York, NY, USA.

Publisher: Elsevier Science Country of Publication: United States NLM ID: 101130150 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1474-4457 (Electronic) Linking ISSN: 14733099 NLM ISO Abbreviation: Lancet Infect Dis Subsets: MEDLINE; In Process

Madhi SA; South African Medical Research Council Vaccines and Infectious Diseases Analytics Research Unit and the Wits Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, SA-MRC Unit on Child and Adolescent Health, University of Cape Town, Cape Town, South Africa; the Vaccines and Immunity Team, Medical Research Council Unit The Gambia at the London School of Hygiene and Tropical Medicine, Fajara, the Gambia; the Institute for International Health Charité, Universitätsmedizin, Berlin, Germany; Children's Hospital Colorado, Aurora, Colorado; Vaccine Research and Development, Pfizer Inc, Pearl River, New York; Vaccine Research and Development, Pfizer Inc, Hurley, United Kingdom; Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán, Argentina; iTrials-Hospital Militar Central, Buenos Aires, Argentina; the Stanford University School of Medicine, Palo Alto, California; the Department of Obstetrics and Gynecology, University of Washington, Seattle, Washington; and Worldwide Safety, Pfizer Srl, Milan, Italy.; Kampmann B; Simões EAF; Zachariah P; Pahud BA; Radley D; Sarwar UN; Shittu E; Llapur C; Pérez Marc G; Maldonado Y; Kachikis A; Zar HJ; Swanson KA; Lino MM; Anderson AS; Gurtman A; Munjal I

Publisher: Lippincott Williams & Wilkins Country of Publication: United States NLM ID: 0401101 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1873-233X (Electronic) Linking ISSN: 00297844 NLM ISO Abbreviation: Obstet Gynecol Subsets: MEDLINE

Madhi, SA; Polack, FP; Piedra, PA; Munoz, FM; Trenholme, AA; Simões, EAF; Swamy, GK; Agrawal, S; Ahmed, K; August, A; Baqui, AH; Calvert, A; Chen, J; Cho, I; Cotton, MF; Cutland, CL; Englund, JA; Fix, A; Gonik, B; Hammitt, L; Heath, PT; de Jesus, JN; Jones, CE; Khalil, A; Kimberlin, DW; Libster, R; Llapur, CJ; Lucero, M; Pérez Marc, G; Marshall, HS; Masenya, MS; Martinón-Torres, F; Meece, JK; Nolan, TM; Osman, A; Perrett, KP; Plested, JS; Richmond, PC; Snape, MD; Shakib, JH; Shinde, V; Stoney, T; Thomas, DN; Tita, AT; Varner, MW; Vatish, M; Vrbicky, K; Wen, J; Zaman, K; Zar, HJ; Glenn, GM; Fries, LF; Prepare Study Group

Fang, Shu; Sinanan, Dillon J.; Perez, Marc H.; Cruz-Quintero, Raul G.; Jadhav, Sachin R.

BIOTECHNOLOGY PROGRESS; MAR 18 2024, 11p.

Ciruzzi, M.S.; Delmonte, G.M.; Di Cola, E.; Dussel, V.; Ensabella, E.; Gómez, K.V.; Marchetti, M.F.; Peserico, F.; Saldeña, J.; Torrecilla, E.M.; Albano, L.; Barceló, A.; Cohen Agrest, D.; Cúneo, M.M.; De Grandis, G.; Fernández, L.; Gaviño, H.; Gonzalez, N.; Ledesma, F.; Martínez Perea, M.D.C.; Morell, M.D.; Nocitti, Y.; Orsi, M.C.; Pérez Marc, G.; Repetto, S.; Selandari, J.; Sorroche, L.; Villasboas, R.M.; Widner, J.

In: Archivos Argentinos de Pediatria. (Archivos Argentinos de Pediatria, April 2025, 123(2))

Simões EAF; Children's Hospital Colorado, Aurora, Colorado; Vaccine Research and Development, Pfizer Inc, Pearl River, New York; the South African Medical Research Council Vaccines and Infectious Diseases Analytics Research Unit and Wits Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, and Famcru, Department of Paediatrics and Child Health, University of Stellenbosch, and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, SA-MRC Unit on Child and Adolescent Health, University of Cape Town, Cape Town, South Africa; Vaccines and Immunity Team, Medical Research Council Unit The Gambia at the London School of Hygiene and Tropical Medicine, Fajara, the Gambia; Institute for International Health Charité, Universitätsmedizin, Berlin, Germany; Vaccine Research and Development, Pfizer Ltd, Marlow, United Kingdom; Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán, and iTrials-Hospital Militar Central and iTrials, Buenos Aires, Argentina; Clinical Research Prime, Idaho Falls, Idaho; Boeson Research, Missoula, Montana; Meridian Clinical Research, Hastings, Nebraska; Asian Hospital and Medical Center, Manila, the Philippines; Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp, the Department of Pediatrics, Department of Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and the ReSViNET Foundation, Zeist, the Netherlands; Meilahti Vaccine Research Center MeVac, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland; National Taiwan University Hospital, Taipei, Taiwan; the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan; Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile; University of Otago and New Zealand Clinical Research, Christchurch, New Zealand; CHU Sainte-Justine, Montreal, Quebec, Canada; Hospital Moinhos de Vento and Pontifícia Universidade Católica RGS, Porto Alegre, Brazil; the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark; Arké SMO S.A. de C.V., Mexico City, Mexico; University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, Western Australia, and Vaccine Clinical Research, Pfizer Inc, Sydney, Australia; and Worldwide Safety, Pfizer Srl, Milan, Italy.; Pahud BA; Madhi SA; Kampmann B; Shittu E; Radley D; Llapur C; Baker J; Pérez Marc G; Barnabas SL; Fausett M; Adam T; Perreras N; Van Houten MA; Kantele A; Huang LM; Bont LJ; Otsuki T; Vargas SL; Gullam J; Tapiero B; Stein RT; Polack FP; Zar HJ; Staerke NB; Padilla MD; Richmond PC; Sarwar UN; Baber J; Koury K; Lino MM; Kalinina EV; Li W; Cooper D; Anderson AS; Swanson KA; Gurtman A; Munjal I

Publisher: Lippincott Williams & Wilkins Country of Publication: United States NLM ID: 0401101 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1873-233X (Electronic) Linking ISSN: 00297844 NLM ISO Abbreviation: Obstet Gynecol Subsets: MEDLINE

Wilson E; From Moderna, Cambridge, MA (E.W., J.G., R. Dhar, L.W., J.D., P.G., A.K., L.L., S.M., R.M., C.A.P., A.K.S., B.J.K., F.S., W.H., C.R., K.S., S.K.S., C.A.S., J.M.M., R. Das, G.L.C.); Johns Hopkins Bloomberg School of Public Health, Baltimore (A.H.B.); Fundación Respirar-Vaccine Research Division (P.A.D.) and Hospital Militar Central Cirujano Mayor Dr. Cosme Argerich (G.P.-M.) - both in Buenos Aires; International Center for Diarrheal Disease Research, Dhaka, Bangladesh (K.Z.); Clinical Site Partners, Winter Park, FL (J.M.); Translational and Clinical Research Institute, Newcastle University, and the National Institute for Health and Care Research Newcastle Clinical Research Facility, Newcastle upon Tyne Hospitals NHS Foundation Trust - both in Newcastle upon Tyne, United Kingdom (C.J.A.D.); Center Hospital of the National Center for Global Health and Medicine, Tokyo (M.U.); Rokotetutkimusklinikka, Järvenpää, and Finnish Vaccine Research, Tampere - both in Finland (M.R.); Vaccine Research-Foundation for the Promotion of Health and Biomedical Research of the Valencia Region (FISABIO) Public Health, Valencia, Spain (L.P.-B.); and the University of Rochester, Rochester, NY (A.R.F., E.E.W.).; Goswami J; From Moderna, Cambridge, MA (E.W., J.G., R. Dhar, L.W., J.D., P.G., A.K., L.L., S.M., R.M., C.A.P., A.K.S., B.J.K., F.S., W.H., C.R., K.S., S.K.S., C.A.S., J.M.M., R. Das, G.L.C.); Johns Hopkins Bloomberg School of Public Health, Baltimore (A.H.B.); Fundación Respirar-Vaccine Research Division (P.A.D.) and Hospital Militar Central Cirujano Mayor Dr. Cosme Argerich (G.P.-M.) - both in Buenos Aires; International Center for Diarrheal Disease Research, Dhaka, Bangladesh (K.Z.); Clinical Site Partners, Winter Park, FL (J.M.); Translational and Clinical Research Institute, Newcastle University, and the National Institute for Health and Care Research Newcastle Clinical Research Facility, Newcastle upon Tyne Hospitals NHS Foundation Trust - both in Newcastle upon Tyne, United Kingdom (C.J.A.D.); Center Hospital of the National Center for Global Health and Medicine, Tokyo (M.U.); Rokotetutkimusklinikka, Järvenpää, and Finnish Vaccine Research, Tampere - both in Finland (M.R.); Vaccine Research-Foundation for the Promotion of Health and Biomedical Research of the Valencia Region (FISABIO) Public Health, Valencia, Spain (L.P.-B.); and the University of Rochester, Rochester, NY (A.R.F., E.E.W.).; Baqui AH; From Moderna, Cambridge, MA (E.W., J.G., R. Dhar, L.W., J.D., P.G., A.K., L.L., S.M., R.M., C.A.P., A.K.S., B.J.K., F.S., W.H., C.R., K.S., S.K.S., C.A.S., J.M.M., R. Das, G.L.C.); Johns Hopkins Bloomberg School of Public Health, Baltimore (A.H.B.); Fundación Respirar-Vaccine Research Division (P.A.D.) and Hospital Militar Central Cirujano Mayor Dr. Cosme Argerich (G.P.-M.) - both in Buenos Aires; International Center for Diarrheal Disease Research, Dhaka, Bangladesh (K.Z.); Clinical Site Partners, Winter Park, FL (J.M.); Translational and Clinical Research Institute, Newcastle University, and the National Institute for Health and Care Research Newcastle Clinical Research Facility, Newcastle upon Tyne Hospitals NHS Foundation Trust - both in Newcastle upon Tyne, United Kingdom (C.J.A.D.); Center Hospital of the National Center for Global Health and Medicine, Tokyo (M.U.); Rokotetutkimusklinikka, Järvenpää, and Finnish Vaccine Research, Tampere - both in Finland (M.R.); Vaccine Research-Foundation for the Promotion of Health and Biomedical Research of the Valencia Region (FISABIO) Public Health, Valencia, Spain (L.P.-B.); and the University of Rochester, Rochester, NY (A.R.F., E.E.W.).; Doreski PA; From Moderna, Cambridge, MA (E.W., J.G., R. Dhar, L.W., J.D., P.G., A.K., L.L., S.M., R.M., C.A.P., A.K.S., B.J.K., F.S., W.H., C.R., K.S., S.K.S., C.A.S., J.M.M., R. Das, G.L.C.); Johns Hopkins Bloomberg School of Public Health, Baltimore (A.H.B.); Fundación Respirar-Vaccine Research Division (P.A.D.) and Hospital Militar Central Cirujano Mayor Dr. Cosme Argerich (G.P.-M.) - both in Buenos Aires; International Center for Diarrheal Disease Research, Dhaka, Bangladesh (K.Z.); Clinical Site Partners, Winter Park, FL (J.M.); Translational and Clinical Research Institute, Newcastle University, and the National Institute for Health and Care Research Newcastle Clinical Research Facility, Newcastle upon Tyne Hospitals NHS Foundation Trust - both in Newcastle upon Tyne, United Kingdom (C.J.A.D.); Center Hospital of the National Center for Global Health and Medicine, Tokyo (M.U.); Rokotetutkimusklinikka, Järvenpää, and Finnish Vaccine Research, Tampere - both in Finland (M.R.); Vaccine Research-Foundation for the Promotion of Health and Biomedical Research of the Valencia Region (FISABIO) Public Health, Valencia, Spain (L.P.-B.); and the University of Rochester, Rochester, NY (A.R.F., E.E.W.).; Perez-Marc G; From Moderna, Cambridge, MA (E.W., J.G., R. Dhar, L.W., J.D., P.G., A.K., L.L., S.M., R.M., C.A.P., A.K.S., B.J.K., F.S., W.H., C.R., K.S., S.K.S., C.A.S., J.M.M., R. Das, G.L.C.); Johns Hopkins Bloomberg School of Public Health, Baltimore (A.H.B.); Fundación Respirar-Vaccine Research Division (P.A.D.) and Hospital Militar Central Cirujano Mayor Dr. Cosme Argerich (G.P.-M.) - both in Buenos Aires; International Center for Diarrheal Disease Research, Dhaka, Bangladesh (K.Z.); Clinical Site Partners, Winter Park, FL (J.M.); Translational and Clinical Research Institute, Newcastle University, and the National Institute for Health and Care Research Newcastle Clinical Research Facility, Newcastle upon Tyne Hospitals NHS Foundation Trust - both in Newcastle upon Tyne, United Kingdom (C.J.A.D.); Center Hospital of the National Center for Global Health and Medicine, Tokyo (M.U.); Rokotetutkimusklinikka, Järvenpää, and Finnish Vaccine Research, Tampere - both in Finland (M.R.); Vaccine Research-Foundation for the Promotion of Health and Biomedical Research of the Valencia Region (FISABIO) Public Health, Valencia, Spain (L.P.-B.); and the University of Rochester, Rochester, NY (A.R.F., E.E.W.).; Zaman K; From Moderna, Cambridge, MA (E.W., J.G., R. Dhar, L.W., J.D., P.G., A.K., L.L., S.M., R.M., C.A.P., A.K.S., B.J.K., F.S., W.H., C.R., K.S., S.K.S., C.A.S., J.M.M., R. Das, G.L.C.); Johns Hopkins Bloomberg School of Public Health, Baltimore (A.H.B.); Fundación Respirar-Vaccine Research Division (P.A.D.) and Hospital Militar Central Cirujano Mayor Dr. Cosme Argerich (G.P.-M.) - both in Buenos Aires; International Center for Diarrheal Disease Research, Dhaka, Bangladesh (K.Z.); Clinical Site Partners, Winter Park, FL (J.M.); Translational and Clinical Research Institute, Newcastle University, and the National Institute for Health and Care Research Newcastle Clinical Research Facility, Newcastle upon Tyne Hospitals NHS Foundation Trust - both in Newcastle upon Tyne, United Kingdom (C.J.A.D.); Center Hospital of the National Center for Global Health and Medicine, Tokyo (M.U.); Rokotetutkimusklinikka, Järvenpää, and Finnish Vaccine Research, Tampere - both in Finland (M.R.); Vaccine Research-Foundation for the Promotion of Health and Biomedical Research of the Valencia Region (FISABIO) Public Health, Valencia, Spain (L.P.-B.); and the University of Rochester, Rochester, NY (A.R.F., E.E.W.).; Monroy J; From Moderna, Cambridge, MA (E.W., J.G., R. Dhar, L.W., J.D., P.G., A.K., L.L., S.M., R.M., C.A.P., A.K.S., B.J.K., F.S., W.H., C.R., K.S., S.K.S., C.A.S., J.M.M., R. Das, G.L.C.); Johns Hopkins Bloomberg School of Public Health, Baltimore (A.H.B.); Fundación Respirar-Vaccine Research Division (P.A.D.) and Hospital Militar Central Cirujano Mayor Dr. Cosme Argerich (G.P.-M.) - both in Buenos Aires; International Center for Diarrheal Disease Research, Dhaka, Bangladesh (K.Z.); Clinical Site Partners, Winter Park, FL (J.M.); Translational and Clinical Research Institute, Newcastle University, and the National Institute for Health and Care Research Newcastle Clinical Research Facility, Newcastle upon Tyne Hospitals NHS Foundation Trust - both in Newcastle upon Tyne, United Kingdom (C.J.A.D.); Center Hospital of the National Center for Global Health and Medicine, Tokyo (M.U.); Rokotetutkimusklinikka, Järvenpää, and Finnish Vaccine Research, Tampere - both in Finland (M.R.); Vaccine Research-Foundation for the Promotion of Health and Biomedical Research of the Valencia Region (FISABIO) Public Health, Valencia, Spain (L.P.-B.); and the University of Rochester, Rochester, NY (A.R.F., E.E.W.).; Duncan CJA; From Moderna, Cambridge, MA (E.W., J.G., R. Dhar, L.W., J.D., P.G., A.K., L.L., S.M., R.M., C.A.P., A.K.S., B.J.K., F.S., W.H., C.R., K.S., S.K.S., C.A.S., J.M.M., R. Das, G.L.C.); Johns Hopkins Bloomberg School of Public Health, Baltimore (A.H.B.); Fundación Respirar-Vaccine Research Division (P.A.D.) and Hospital Militar Central Cirujano Mayor Dr. Cosme Argerich (G.P.-M.) - both in Buenos Aires; International Center for Diarrheal Disease Research, Dhaka, Bangladesh (K.Z.); Clinical Site Partners, Winter Park, FL (J.M.); Translational and Clinical Research Institute, Newcastle University, and the National Institute for Health and Care Research Newcastle Clinical Research Facility, Newcastle upon Tyne Hospitals NHS Foundation Trust - both in Newcastle upon Tyne, United Kingdom (C.J.A.D.); Center Hospital of the National Center for Global Health and Medicine, Tokyo (M.U.); Rokotetutkimusklinikka, Järvenpää, and Finnish Vaccine Research, Tampere - both in Finland (M.R.); Vaccine Research-Foundation for the Promotion of Health and Biomedical Research of the Valencia Region (FISABIO) Public Health, Valencia, Spain (L.P.-B.); and the University of Rochester, Rochester, NY (A.R.F., E.E.W.).; Ujiie M; From Moderna, Cambridge, MA (E.W., J.G., R. Dhar, L.W., J.D., P.G., A.K., L.L., S.M., R.M., C.A.P., A.K.S., B.J.K., F.S., W.H., C.R., K.S., S.K.S., C.A.S., J.M.M., R. Das, G.L.C.); Johns Hopkins Bloomberg School of Public Health, Baltimore (A.H.B.); Fundación Respirar-Vaccine Research Division (P.A.D.) and Hospital Militar Central Cirujano Mayor Dr. Cosme Argerich (G.P.-M.) - both in Buenos Aires; International Center for Diarrheal Disease Research, Dhaka, Bangladesh (K.Z.); Clinical Site Partners, Winter Park, FL (J.M.); Translational and Clinical Research Institute, Newcastle University, and the National Institute for Health and Care Research Newcastle Clinical Research Facility, Newcastle upon Tyne Hospitals NHS Foundation Trust - both in Newcastle upon Tyne, United Kingdom (C.J.A.D.); Center Hospital of the National Center for Global Health and Medicine, Tokyo (M.U.); Rokotetutkimusklinikka, Järvenpää, and Finnish Vaccine Research, Tampere - both in Finland (M.R.); Vaccine Research-Foundation for the Promotion of Health and Biomedical Research of the Valencia Region (FISABIO) Public Health, Valencia, Spain (L.P.-B.); and the University of Rochester, Rochester, NY (A.R.F., E.E.W.).; Rämet M; From Moderna, Cambridge, MA (E.W., J.G., R. Dhar, L.W., J.D., P.G., A.K., L.L., S.M., R.M., C.A.P., A.K.S., B.J.K., F.S., W.H., C.R., K.S., S.K.S., C.A.S., J.M.M., R. Das, G.L.C.); Johns Hopkins Bloomberg School of Public Health, Baltimore (A.H.B.); Fundación Respirar-Vaccine Research Division (P.A.D.) and Hospital Militar Central Cirujano Mayor Dr. Cosme Argerich (G.P.-M.) - both in Buenos Aires; International Center for Diarrheal Disease Research, Dhaka, Bangladesh (K.Z.); Clinical Site Partners, Winter Park, FL (J.M.); Translational and Clinical Research Institute, Newcastle University, and the National Institute for Health and Care Research Newcastle Clinical Research Facility, Newcastle upon Tyne Hospitals NHS Foundation Trust - both in Newcastle upon Tyne, United Kingdom (C.J.A.D.); Center Hospital of the National Center for Global Health and Medicine, Tokyo (M.U.); Rokotetutkimusklinikka, Järvenpää, and Finnish Vaccine Research, Tampere - both in Finland (M.R.); Vaccine Research-Foundation for the Promotion of Health and Biomedical Research of the Valencia Region (FISABIO) Public Health, Valencia, Spain (L.P.-B.); and the University of Rochester, Rochester, NY (A.R.F., E.E.W.).; Pérez-Breva L; From Moderna, Cambridge, MA (E.W., J.G., R. Dhar, L.W., J.D., P.G., A.K., L.L., S.M., R.M., C.A.P., A.K.S., B.J.K., F.S., W.H., C.R., K.S., S.K.S., C.A.S., J.M.M., R. Das, G.L.C.); Johns Hopkins Bloomberg School of Public Health, Baltimore (A.H.B.); Fundación Respirar-Vaccine Research Division (P.A.D.) and Hospital Militar Central Cirujano Mayor Dr. Cosme Argerich (G.P.-M.) - both in Buenos Aires; International Center for Diarrheal Disease Research, Dhaka, Bangladesh (K.Z.); Clinical Site Partners, Winter Park, FL (J.M.); Translational and Clinical Research Institute, Newcastle University, and the National Institute for Health and Care Research Newcastle Clinical Research Facility, Newcastle upon Tyne Hospitals NHS Foundation Trust - both in Newcastle upon Tyne, United Kingdom (C.J.A.D.); Center Hospital of the National Center for Global Health and Medicine, Tokyo (M.U.); Rokotetutkimusklinikka, Järvenpää, and Finnish Vaccine Research, Tampere - both in Finland (M.R.); Vaccine Research-Foundation for the Promotion of Health and Biomedical Research of the Valencia Region (FISABIO) Public Health, Valencia, Spain (L.P.-B.); and the University of Rochester, Rochester, NY (A.R.F., E.E.W.).; Falsey AR; From Moderna, Cambridge, MA (E.W., J.G., R. Dhar, L.W., J.D., P.G., A.K., L.L., S.M., R.M., C.A.P., A.K.S., B.J.K., F.S., W.H., C.R., K.S., S.K.S., C.A.S., J.M.M., R. Das, G.L.C.); Johns Hopkins Bloomberg School of Public Health, Baltimore (A.H.B.); Fundación Respirar-Vaccine Research Division (P.A.D.) and Hospital Militar Central Cirujano Mayor Dr. Cosme Argerich (G.P.-M.) - both in Buenos Aires; International Center for Diarrheal Disease Research, Dhaka, Bangladesh (K.Z.); Clinical Site Partners, Winter Park, FL (J.M.); Translational and Clinical Research Institute, Newcastle University, and the National Institute for Health and Care Research Newcastle Clinical Research Facility, Newcastle upon Tyne Hospitals NHS Foundation Trust - both in Newcastle upon Tyne, United Kingdom (C.J.A.D.); Center Hospital of the National Center for Global Health and Medicine, Tokyo (M.U.); Rokotetutkimusklinikka, Järvenpää, and Finnish Vaccine Research, Tampere - both in Finland (M.R.); Vaccine Research-Foundation for the Promotion of Health and Biomedical Research of the Valencia Region (FISABIO) Public Health, Valencia, Spain (L.P.-B.); and the University of Rochester, Rochester, NY (A.R.F., E.E.W.).; Walsh EE; From Moderna, Cambridge, MA (E.W., J.G., R. Dhar, L.W., J.D., P.G., A.K., L.L., S.M., R.M., C.A.P., A.K.S., B.J.K., F.S., W.H., C.R., K.S., S.K.S., C.A.S., J.M.M., R. Das, G.L.C.); Johns Hopkins Bloomberg School of Public Health, Baltimore (A.H.B.); Fundación Respirar-Vaccine Research Division (P.A.D.) and Hospital Militar Central Cirujano Mayor Dr. Cosme Argerich (G.P.-M.) - both in Buenos Aires; International Center for Diarrheal Disease Research, Dhaka, Bangladesh (K.Z.); Clinical Site Partners, Winter Park, FL (J.M.); Translational and Clinical Research Institute, Newcastle University, and the National Institute for Health and Care Research Newcastle Clinical Research Facility, Newcastle upon Tyne Hospitals NHS Foundation Trust - both in Newcastle upon Tyne, United Kingdom (C.J.A.D.); Center Hospital of the National Center for Global Health and Medicine, Tokyo (M.U.); Rokotetutkimusklinikka, Järvenpää, and Finnish Vaccine Research, Tampere - both in Finland (M.R.); Vaccine Research-Foundation for the Promotion of Health and Biomedical Research of the Valencia Region (FISABIO) Public Health, Valencia, Spain (L.P.-B.); and the University of Rochester, Rochester, NY (A.R.F., E.E.W.).; Dhar R; From Moderna, Cambridge, MA (E.W., J.G., R. Dhar, L.W., J.D., P.G., A.K., L.L., S.M., R.M., C.A.P., A.K.S., B.J.K., F.S., W.H., C.R., K.S., S.K.S., C.A.S., J.M.M., R. Das, G.L.C.); Johns Hopkins Bloomberg School of Public Health, Baltimore (A.H.B.); Fundación Respirar-Vaccine Research Division (P.A.D.) and Hospital Militar Central Cirujano Mayor Dr. Cosme Argerich (G.P.-M.) - both in Buenos Aires; International Center for Diarrheal Disease Research, Dhaka, Bangladesh (K.Z.); Clinical Site Partners, Winter Park, FL (J.M.); Translational and Clinical Research Institute, Newcastle University, and the National Institute for Health and Care Research Newcastle Clinical Research Facility, Newcastle upon Tyne Hospitals NHS Foundation Trust - both in Newcastle upon Tyne, United Kingdom (C.J.A.D.); Center Hospital of the National Center for Global Health and Medicine, Tokyo (M.U.); Rokotetutkimusklinikka, Järvenpää, and Finnish Vaccine Research, Tampere - both in Finland (M.R.); Vaccine Research-Foundation for the Promotion of Health and Biomedical Research of the Valencia Region (FISABIO) Public Health, Valencia, Spain (L.P.-B.); and the University of Rochester, Rochester, NY (A.R.F., E.E.W.).; Wilson L; From Moderna, Cambridge, MA (E.W., J.G., R. Dhar, L.W., J.D., P.G., A.K., L.L., S.M., R.M., C.A.P., A.K.S., B.J.K., F.S., W.H., C.R., K.S., S.K.S., C.A.S., J.M.M., R. Das, G.L.C.); Johns Hopkins Bloomberg School of Public Health, Baltimore (A.H.B.); Fundación Respirar-Vaccine Research Division (P.A.D.) and Hospital Militar Central Cirujano Mayor Dr. Cosme Argerich (G.P.-M.) - both in Buenos Aires; International Center for Diarrheal Disease Research, Dhaka, Bangladesh (K.Z.); Clinical Site Partners, Winter Park, FL (J.M.); Translational and Clinical Research Institute, Newcastle University, and the National Institute for Health and Care Research Newcastle Clinical Research Facility, Newcastle upon Tyne Hospitals NHS Foundation Trust - both in Newcastle upon Tyne, United Kingdom (C.J.A.D.); Center Hospital of the National Center for Global Health and Medicine, Tokyo (M.U.); Rokotetutkimusklinikka, Järvenpää, and Finnish Vaccine Research, Tampere - both in Finland (M.R.); Vaccine Research-Foundation for the Promotion of Health and Biomedical Research of the Valencia Region (FISABIO) Public Health, Valencia, Spain (L.P.-B.); and the University of Rochester, Rochester, NY (A.R.F., E.E.W.).; Du J; From Moderna, Cambridge, MA (E.W., J.G., R. Dhar, L.W., J.D., P.G., A.K., L.L., S.M., R.M., C.A.P., A.K.S., B.J.K., F.S., W.H., C.R., K.S., S.K.S., C.A.S., J.M.M., R. Das, G.L.C.); Johns Hopkins Bloomberg School of Public Health, Baltimore (A.H.B.); Fundación Respirar-Vaccine Research Division (P.A.D.) and Hospital Militar Central Cirujano Mayor Dr. Cosme Argerich (G.P.-M.) - both in Buenos Aires; International Center for Diarrheal Disease Research, Dhaka, Bangladesh (K.Z.); Clinical Site Partners, Winter Park, FL (J.M.); Translational and Clinical Research Institute, Newcastle University, and the National Institute for Health and Care Research Newcastle Clinical Research Facility, Newcastle upon Tyne Hospitals NHS Foundation Trust - both in Newcastle upon Tyne, United Kingdom (C.J.A.D.); Center Hospital of the National Center for Global Health and Medicine, Tokyo (M.U.); Rokotetutkimusklinikka, Järvenpää, and Finnish Vaccine Research, Tampere - both in Finland (M.R.); Vaccine Research-Foundation for the Promotion of Health and Biomedical Research of the Valencia Region (FISABIO) Public Health, Valencia, Spain (L.P.-B.); and the University of Rochester, Rochester, NY (A.R.F., E.E.W.).; Ghaswalla P; From Moderna, Cambridge, MA (E.W., J.G., R. Dhar, L.W., J.D., P.G., A.K., L.L., S.M., R.M., C.A.P., A.K.S., B.J.K., F.S., W.H., C.R., K.S., S.K.S., C.A.S., J.M.M., R. Das, G.L.C.); Johns Hopkins Bloomberg School of Public Health, Baltimore (A.H.B.); Fundación Respirar-Vaccine Research Division (P.A.D.) and Hospital Militar Central Cirujano Mayor Dr. Cosme Argerich (G.P.-M.) - both in Buenos Aires; International Center for Diarrheal Disease Research, Dhaka, Bangladesh (K.Z.); Clinical Site Partners, Winter Park, FL (J.M.); Translational and Clinical Research Institute, Newcastle University, and the National Institute for Health and Care Research Newcastle Clinical Research Facility, Newcastle upon Tyne Hospitals NHS Foundation Trust - both in Newcastle upon Tyne, United Kingdom (C.J.A.D.); Center Hospital of the National Center for Global Health and Medicine, Tokyo (M.U.); Rokotetutkimusklinikka, Järvenpää, and Finnish Vaccine Research, Tampere - both in Finland (M.R.); Vaccine Research-Foundation for the Promotion of Health and Biomedical Research of the Valencia Region (FISABIO) Public Health, Valencia, Spain (L.P.-B.); and the University of Rochester, Rochester, NY (A.R.F., E.E.W.).; Kapoor A; From Moderna, Cambridge, MA (E.W., J.G., R. Dhar, L.W., J.D., P.G., A.K., L.L., S.M., R.M., C.A.P., A.K.S., B.J.K., F.S., W.H., C.R., K.S., S.K.S., C.A.S., J.M.M., R. Das, G.L.C.); Johns Hopkins Bloomberg School of Public Health, Baltimore (A.H.B.); Fundación Respirar-Vaccine Research Division (P.A.D.) and Hospital Militar Central Cirujano Mayor Dr. Cosme Argerich (G.P.-M.) - both in Buenos Aires; International Center for Diarrheal Disease Research, Dhaka, Bangladesh (K.Z.); Clinical Site Partners, Winter Park, FL (J.M.); Translational and Clinical Research Institute, Newcastle University, and the National Institute for Health and Care Research Newcastle Clinical Research Facility, Newcastle upon Tyne Hospitals NHS Foundation Trust - both in Newcastle upon Tyne, United Kingdom (C.J.A.D.); Center Hospital of the National Center for Global Health and Medicine, Tokyo (M.U.); Rokotetutkimusklinikka, Järvenpää, and Finnish Vaccine Research, Tampere - both in Finland (M.R.); Vaccine Research-Foundation for the Promotion of Health and Biomedical Research of the Valencia Region (FISABIO) Public Health, Valencia, Spain (L.P.-B.); and the University of Rochester, Rochester, NY (A.R.F., E.E.W.).; Lan L; From Moderna, Cambridge, MA (E.W., J.G., R. Dhar, L.W., J.D., P.G., A.K., L.L., S.M., R.M., C.A.P., A.K.S., B.J.K., F.S., W.H., C.R., K.S., S.K.S., C.A.S., J.M.M., R. Das, G.L.C.); Johns Hopkins Bloomberg School of Public Health, Baltimore (A.H.B.); Fundación Respirar-Vaccine Research Division (P.A.D.) and Hospital Militar Central Cirujano Mayor Dr. Cosme Argerich (G.P.-M.) - both in Buenos Aires; International Center for Diarrheal Disease Research, Dhaka, Bangladesh (K.Z.); Clinical Site Partners, Winter Park, FL (J.M.); Translational and Clinical Research Institute, Newcastle University, and the National Institute for Health and Care Research Newcastle Clinical Research Facility, Newcastle upon Tyne Hospitals NHS Foundation Trust - both in Newcastle upon Tyne, United Kingdom (C.J.A.D.); Center Hospital of the National Center for Global Health and Medicine, Tokyo (M.U.); Rokotetutkimusklinikka, Järvenpää, and Finnish Vaccine Research, Tampere - both in Finland (M.R.); Vaccine Research-Foundation for the Promotion of Health and Biomedical Research of the Valencia Region (FISABIO) Public Health, Valencia, Spain (L.P.-B.); and the University of Rochester, Rochester, NY (A.R.F., E.E.W.).; Mehta S; From Moderna, Cambridge, MA (E.W., J.G., R. Dhar, L.W., J.D., P.G., A.K., L.L., S.M., R.M., C.A.P., A.K.S., B.J.K., F.S., W.H., C.R., K.S., S.K.S., C.A.S., J.M.M., R. Das, G.L.C.); Johns Hopkins Bloomberg School of Public Health, Baltimore (A.H.B.); Fundación Respirar-Vaccine Research Division (P.A.D.) and Hospital Militar Central Cirujano Mayor Dr. Cosme Argerich (G.P.-M.) - both in Buenos Aires; International Center for Diarrheal Disease Research, Dhaka, Bangladesh (K.Z.); Clinical Site Partners, Winter Park, FL (J.M.); Translational and Clinical Research Institute, Newcastle University, and the National Institute for Health and Care Research Newcastle Clinical Research Facility, Newcastle upon Tyne Hospitals NHS Foundation Trust - both in Newcastle upon Tyne, United Kingdom (C.J.A.D.); Center Hospital of the National Center for Global Health and Medicine, Tokyo (M.U.); Rokotetutkimusklinikka, Järvenpää, and Finnish Vaccine Research, Tampere - both in Finland (M.R.); Vaccine Research-Foundation for the Promotion of Health and Biomedical Research of the Valencia Region (FISABIO) Public Health, Valencia, Spain (L.P.-B.); and the University of Rochester, Rochester, NY (A.R.F., E.E.W.).; Mithani R; From Moderna, Cambridge, MA (E.W., J.G., R. Dhar, L.W., J.D., P.G., A.K., L.L., S.M., R.M., C.A.P., A.K.S., B.J.K., F.S., W.H., C.R., K.S., S.K.S., C.A.S., J.M.M., R. Das, G.L.C.); Johns Hopkins Bloomberg School of Public Health, Baltimore (A.H.B.); Fundación Respirar-Vaccine Research Division (P.A.D.) and Hospital Militar Central Cirujano Mayor Dr. Cosme Argerich (G.P.-M.) - both in Buenos Aires; International Center for Diarrheal Disease Research, Dhaka, Bangladesh (K.Z.); Clinical Site Partners, Winter Park, FL (J.M.); Translational and Clinical Research Institute, Newcastle University, and the National Institute for Health and Care Research Newcastle Clinical Research Facility, Newcastle upon Tyne Hospitals NHS Foundation Trust - both in Newcastle upon Tyne, United Kingdom (C.J.A.D.); Center Hospital of the National Center for Global Health and Medicine, Tokyo (M.U.); Rokotetutkimusklinikka, Järvenpää, and Finnish Vaccine Research, Tampere - both in Finland (M.R.); Vaccine Research-Foundation for the Promotion of Health and Biomedical Research of the Valencia Region (FISABIO) Public Health, Valencia, Spain (L.P.-B.); and the University of Rochester, Rochester, NY (A.R.F., E.E.W.).; Panozzo CA; From Moderna, Cambridge, MA (E.W., J.G., R. Dhar, L.W., J.D., P.G., A.K., L.L., S.M., R.M., C.A.P., A.K.S., B.J.K., F.S., W.H., C.R., K.S., S.K.S., C.A.S., J.M.M., R. Das, G.L.C.); Johns Hopkins Bloomberg School of Public Health, Baltimore (A.H.B.); Fundación Respirar-Vaccine Research Division (P.A.D.) and Hospital Militar Central Cirujano Mayor Dr. Cosme Argerich (G.P.-M.) - both in Buenos Aires; International Center for Diarrheal Disease Research, Dhaka, Bangladesh (K.Z.); Clinical Site Partners, Winter Park, FL (J.M.); Translational and Clinical Research Institute, Newcastle University, and the National Institute for Health and Care Research Newcastle Clinical Research Facility, Newcastle upon Tyne Hospitals NHS Foundation Trust - both in Newcastle upon Tyne, United Kingdom (C.J.A.D.); Center Hospital of the National Center for Global Health and Medicine, Tokyo (M.U.); Rokotetutkimusklinikka, Järvenpää, and Finnish Vaccine Research, Tampere - both in Finland (M.R.); Vaccine Research-Foundation for the Promotion of Health and Biomedical Research of the Valencia Region (FISABIO) Public Health, Valencia, Spain (L.P.-B.); and the University of Rochester, Rochester, NY (A.R.F., E.E.W.).; Simorellis AK; From Moderna, Cambridge, MA (E.W., J.G., R. Dhar, L.W., J.D., P.G., A.K., L.L., S.M., R.M., C.A.P., A.K.S., B.J.K., F.S., W.H., C.R., K.S., S.K.S., C.A.S., J.M.M., R. Das, G.L.C.); Johns Hopkins Bloomberg School of Public Health, Baltimore (A.H.B.); Fundación Respirar-Vaccine Research Division (P.A.D.) and Hospital Militar Central Cirujano Mayor Dr. Cosme Argerich (G.P.-M.) - both in Buenos Aires; International Center for Diarrheal Disease Research, Dhaka, Bangladesh (K.Z.); Clinical Site Partners, Winter Park, FL (J.M.); Translational and Clinical Research Institute, Newcastle University, and the National Institute for Health and Care Research Newcastle Clinical Research Facility, Newcastle upon Tyne Hospitals NHS Foundation Trust - both in Newcastle upon Tyne, United Kingdom (C.J.A.D.); Center Hospital of the National Center for Global Health and Medicine, Tokyo (M.U.); Rokotetutkimusklinikka, Järvenpää, and Finnish Vaccine Research, Tampere - both in Finland (M.R.); Vaccine Research-Foundation for the Promotion of Health and Biomedical Research of the Valencia Region (FISABIO) Public Health, Valencia, Spain (L.P.-B.); and the University of Rochester, Rochester, NY (A.R.F., E.E.W.).; Kuter BJ; From Moderna, Cambridge, MA (E.W., J.G., R. Dhar, L.W., J.D., P.G., A.K., L.L., S.M., R.M., C.A.P., A.K.S., B.J.K., F.S., W.H., C.R., K.S., S.K.S., C.A.S., J.M.M., R. Das, G.L.C.); Johns Hopkins Bloomberg School of Public Health, Baltimore (A.H.B.); Fundación Respirar-Vaccine Research Division (P.A.D.) and Hospital Militar Central Cirujano Mayor Dr. Cosme Argerich (G.P.-M.) - both in Buenos Aires; International Center for Diarrheal Disease Research, Dhaka, Bangladesh (K.Z.); Clinical Site Partners, Winter Park, FL (J.M.); Translational and Clinical Research Institute, Newcastle University, and the National Institute for Health and Care Research Newcastle Clinical Research Facility, Newcastle upon Tyne Hospitals NHS Foundation Trust - both in Newcastle upon Tyne, United Kingdom (C.J.A.D.); Center Hospital of the National Center for Global Health and Medicine, Tokyo (M.U.); Rokotetutkimusklinikka, Järvenpää, and Finnish Vaccine Research, Tampere - both in Finland (M.R.); Vaccine Research-Foundation for the Promotion of Health and Biomedical Research of the Valencia Region (FISABIO) Public Health, Valencia, Spain (L.P.-B.); and the University of Rochester, Rochester, NY (A.R.F., E.E.W.).; Schödel F; From Moderna, Cambridge, MA (E.W., J.G., R. Dhar, L.W., J.D., P.G., A.K., L.L., S.M., R.M., C.A.P., A.K.S., B.J.K., F.S., W.H., C.R., K.S., S.K.S., C.A.S., J.M.M., R. Das, G.L.C.); Johns Hopkins Bloomberg School of Public Health, Baltimore (A.H.B.); Fundación Respirar-Vaccine Research Division (P.A.D.) and Hospital Militar Central Cirujano Mayor Dr. Cosme Argerich (G.P.-M.) - both in Buenos Aires; International Center for Diarrheal Disease Research, Dhaka, Bangladesh (K.Z.); Clinical Site Partners, Winter Park, FL (J.M.); Translational and Clinical Research Institute, Newcastle University, and the National Institute for Health and Care Research Newcastle Clinical Research Facility, Newcastle upon Tyne Hospitals NHS Foundation Trust - both in Newcastle upon Tyne, United Kingdom (C.J.A.D.); Center Hospital of the National Center for Global Health and Medicine, Tokyo (M.U.); Rokotetutkimusklinikka, Järvenpää, and Finnish Vaccine Research, Tampere - both in Finland (M.R.); Vaccine Research-Foundation for the Promotion of Health and Biomedical Research of the Valencia Region (FISABIO) Public Health, Valencia, Spain (L.P.-B.); and the University of Rochester, Rochester, NY (A.R.F., E.E.W.).; Huang W; From Moderna, Cambridge, MA (E.W., J.G., R. Dhar, L.W., J.D., P.G., A.K., L.L., S.M., R.M., C.A.P., A.K.S., B.J.K., F.S., W.H., C.R., K.S., S.K.S., C.A.S., J.M.M., R. Das, G.L.C.); Johns Hopkins Bloomberg School of Public Health, Baltimore (A.H.B.); Fundación Respirar-Vaccine Research Division (P.A.D.) and Hospital Militar Central Cirujano Mayor Dr. Cosme Argerich (G.P.-M.) - both in Buenos Aires; International Center for Diarrheal Disease Research, Dhaka, Bangladesh (K.Z.); Clinical Site Partners, Winter Park, FL (J.M.); Translational and Clinical Research Institute, Newcastle University, and the National Institute for Health and Care Research Newcastle Clinical Research Facility, Newcastle upon Tyne Hospitals NHS Foundation Trust - both in Newcastle upon Tyne, United Kingdom (C.J.A.D.); Center Hospital of the National Center for Global Health and Medicine, Tokyo (M.U.); Rokotetutkimusklinikka, Järvenpää, and Finnish Vaccine Research, Tampere - both in Finland (M.R.); Vaccine Research-Foundation for the Promotion of Health and Biomedical Research of the Valencia Region (FISABIO) Public Health, Valencia, Spain (L.P.-B.); and the University of Rochester, Rochester, NY (A.R.F., E.E.W.).; Reuter C; From Moderna, Cambridge, MA (E.W., J.G., R. Dhar, L.W., J.D., P.G., A.K., L.L., S.M., R.M., C.A.P., A.K.S., B.J.K., F.S., W.H., C.R., K.S., S.K.S., C.A.S., J.M.M., R. Das, G.L.C.); Johns Hopkins Bloomberg School of Public Health, Baltimore (A.H.B.); Fundación Respirar-Vaccine Research Division (P.A.D.) and Hospital Militar Central Cirujano Mayor Dr. Cosme Argerich (G.P.-M.) - both in Buenos Aires; International Center for Diarrheal Disease Research, Dhaka, Bangladesh (K.Z.); Clinical Site Partners, Winter Park, FL (J.M.); Translational and Clinical Research Institute, Newcastle University, and the National Institute for Health and Care Research Newcastle Clinical Research Facility, Newcastle upon Tyne Hospitals NHS Foundation Trust - both in Newcastle upon Tyne, United Kingdom (C.J.A.D.); Center Hospital of the National Center for Global Health and Medicine, Tokyo (M.U.); Rokotetutkimusklinikka, Järvenpää, and Finnish Vaccine Research, Tampere - both in Finland (M.R.); Vaccine Research-Foundation for the Promotion of Health and Biomedical Research of the Valencia Region (FISABIO) Public Health, Valencia, Spain (L.P.-B.); and the University of Rochester, Rochester, NY (A.R.F., E.E.W.).; Slobod K; From Moderna, Cambridge, MA (E.W., J.G., R. Dhar, L.W., J.D., P.G., A.K., L.L., S.M., R.M., C.A.P., A.K.S., B.J.K., F.S., W.H., C.R., K.S., S.K.S., C.A.S., J.M.M., R. Das, G.L.C.); Johns Hopkins Bloomberg School of Public Health, Baltimore (A.H.B.); Fundación Respirar-Vaccine Research Division (P.A.D.) and Hospital Militar Central Cirujano Mayor Dr. Cosme Argerich (G.P.-M.) - both in Buenos Aires; International Center for Diarrheal Disease Research, Dhaka, Bangladesh (K.Z.); Clinical Site Partners, Winter Park, FL (J.M.); Translational and Clinical Research Institute, Newcastle University, and the National Institute for Health and Care Research Newcastle Clinical Research Facility, Newcastle upon Tyne Hospitals NHS Foundation Trust - both in Newcastle upon Tyne, United Kingdom (C.J.A.D.); Center Hospital of the National Center for Global Health and Medicine, Tokyo (M.U.); Rokotetutkimusklinikka, Järvenpää, and Finnish Vaccine Research, Tampere - both in Finland (M.R.); Vaccine Research-Foundation for the Promotion of Health and Biomedical Research of the Valencia Region (FISABIO) Public Health, Valencia, Spain (L.P.-B.); and the University of Rochester, Rochester, NY (A.R.F., E.E.W.).; Stoszek SK; From Moderna, Cambridge, MA (E.W., J.G., R. Dhar, L.W., J.D., P.G., A.K., L.L., S.M., R.M., C.A.P., A.K.S., B.J.K., F.S., W.H., C.R., K.S., S.K.S., C.A.S., J.M.M., R. Das, G.L.C.); Johns Hopkins Bloomberg School of Public Health, Baltimore (A.H.B.); Fundación Respirar-Vaccine Research Division (P.A.D.) and Hospital Militar Central Cirujano Mayor Dr. Cosme Argerich (G.P.-M.) - both in Buenos Aires; International Center for Diarrheal Disease Research, Dhaka, Bangladesh (K.Z.); Clinical Site Partners, Winter Park, FL (J.M.); Translational and Clinical Research Institute, Newcastle University, and the National Institute for Health and Care Research Newcastle Clinical Research Facility, Newcastle upon Tyne Hospitals NHS Foundation Trust - both in Newcastle upon Tyne, United Kingdom (C.J.A.D.); Center Hospital of the National Center for Global Health and Medicine, Tokyo (M.U.); Rokotetutkimusklinikka, Järvenpää, and Finnish Vaccine Research, Tampere - both in Finland (M.R.); Vaccine Research-Foundation for the Promotion of Health and Biomedical Research of the Valencia Region (FISABIO) Public Health, Valencia, Spain (L.P.-B.); and the University of Rochester, Rochester, NY (A.R.F., E.E.W.).; Shaw CA; From Moderna, Cambridge, MA (E.W., J.G., R. Dhar, L.W., J.D., P.G., A.K., L.L., S.M., R.M., C.A.P., A.K.S., B.J.K., F.S., W.H., C.R., K.S., S.K.S., C.A.S., J.M.M., R. Das, G.L.C.); Johns Hopkins Bloomberg School of Public Health, Baltimore (A.H.B.); Fundación Respirar-Vaccine Research Division (P.A.D.) and Hospital Militar Central Cirujano Mayor Dr. Cosme Argerich (G.P.-M.) - both in Buenos Aires; International Center for Diarrheal Disease Research, Dhaka, Bangladesh (K.Z.); Clinical Site Partners, Winter Park, FL (J.M.); Translational and Clinical Research Institute, Newcastle University, and the National Institute for Health and Care Research Newcastle Clinical Research Facility, Newcastle upon Tyne Hospitals NHS Foundation Trust - both in Newcastle upon Tyne, United Kingdom (C.J.A.D.); Center Hospital of the National Center for Global Health and Medicine, Tokyo (M.U.); Rokotetutkimusklinikka, Järvenpää, and Finnish Vaccine Research, Tampere - both in Finland (M.R.); Vaccine Research-Foundation for the Promotion of Health and Biomedical Research of the Valencia Region (FISABIO) Public Health, Valencia, Spain (L.P.-B.); and the University of Rochester, Rochester, NY (A.R.F., E.E.W.).; Miller JM; From Moderna, Cambridge, MA (E.W., J.G., R. Dhar, L.W., J.D., P.G., A.K., L.L., S.M., R.M., C.A.P., A.K.S., B.J.K., F.S., W.H., C.R., K.S., S.K.S., C.A.S., J.M.M., R. Das, G.L.C.); Johns Hopkins Bloomberg School of Public Health, Baltimore (A.H.B.); Fundación Respirar-Vaccine Research Division (P.A.D.) and Hospital Militar Central Cirujano Mayor Dr. Cosme Argerich (G.P.-M.) - both in Buenos Aires; International Center for Diarrheal Disease Research, Dhaka, Bangladesh (K.Z.); Clinical Site Partners, Winter Park, FL (J.M.); Translational and Clinical Research Institute, Newcastle University, and the National Institute for Health and Care Research Newcastle Clinical Research Facility, Newcastle upon Tyne Hospitals NHS Foundation Trust - both in Newcastle upon Tyne, United Kingdom (C.J.A.D.); Center Hospital of the National Center for Global Health and Medicine, Tokyo (M.U.); Rokotetutkimusklinikka, Järvenpää, and Finnish Vaccine Research, Tampere - both in Finland (M.R.); Vaccine Research-Foundation for the Promotion of Health and Biomedical Research of the Valencia Region (FISABIO) Public Health, Valencia, Spain (L.P.-B.); and the University of Rochester, Rochester, NY (A.R.F., E.E.W.).; Das R; From Moderna, Cambridge, MA (E.W., J.G., R. Dhar, L.W., J.D., P.G., A.K., L.L., S.M., R.M., C.A.P., A.K.S., B.J.K., F.S., W.H., C.R., K.S., S.K.S., C.A.S., J.M.M., R. Das, G.L.C.); Johns Hopkins Bloomberg School of Public Health, Baltimore (A.H.B.); Fundación Respirar-Vaccine Research Division (P.A.D.) and Hospital Militar Central Cirujano Mayor Dr. Cosme Argerich (G.P.-M.) - both in Buenos Aires; International Center for Diarrheal Disease Research, Dhaka, Bangladesh (K.Z.); Clinical Site Partners, Winter Park, FL (J.M.); Translational and Clinical Research Institute, Newcastle University, and the National Institute for Health and Care Research Newcastle Clinical Research Facility, Newcastle upon Tyne Hospitals NHS Foundation Trust - both in Newcastle upon Tyne, United Kingdom (C.J.A.D.); Center Hospital of the National Center for Global Health and Medicine, Tokyo (M.U.); Rokotetutkimusklinikka, Järvenpää, and Finnish Vaccine Research, Tampere - both in Finland (M.R.); Vaccine Research-Foundation for the Promotion of Health and Biomedical Research of the Valencia Region (FISABIO) Public Health, Valencia, Spain (L.P.-B.); and the University of Rochester, Rochester, NY (A.R.F., E.E.W.).; Chen GL; From Moderna, Cambridge, MA (E.W., J.G., R. Dhar, L.W., J.D., P.G., A.K., L.L., S.M., R.M., C.A.P., A.K.S., B.J.K., F.S., W.H., C.R., K.S., S.K.S., C.A.S., J.M.M., R. Das, G.L.C.); Johns Hopkins Bloomberg School of Public Health, Baltimore (A.H.B.); Fundación Respirar-Vaccine Research Division (P.A.D.) and Hospital Militar Central Cirujano Mayor Dr. Cosme Argerich (G.P.-M.) - both in Buenos Aires; International Center for Diarrheal Disease Research, Dhaka, Bangladesh (K.Z.); Clinical Site Partners, Winter Park, FL (J.M.); Translational and Clinical Research Institute, Newcastle University, and the National Institute for Health and Care Research Newcastle Clinical Research Facility, Newcastle upon Tyne Hospitals NHS Foundation Trust - both in Newcastle upon Tyne, United Kingdom (C.J.A.D.); Center Hospital of the National Center for Global Health and Medicine, Tokyo (M.U.); Rokotetutkimusklinikka, Järvenpää, and Finnish Vaccine Research, Tampere - both in Finland (M.R.); Vaccine Research-Foundation for the Promotion of Health and Biomedical Research of the Valencia Region (FISABIO) Public Health, Valencia, Spain (L.P.-B.); and the University of Rochester, Rochester, NY (A.R.F., E.E.W.).

Publisher: Massachusetts Medical Society Country of Publication: United States NLM ID: 0255562 Publication Model: Print Cited Medium: Internet ISSN: 1533-4406 (Electronic) Linking ISSN: 00284793 NLM ISO Abbreviation: N Engl J Med Subsets: MEDLINE

Walsh EE; From the University of Rochester Medical Center, Rochester (E.E.W., A.R.F.), and Vaccine Research and Development (E.D., G.C.V., M.I., D.E., T.M., R.N.S., K.S., D.C., K.K., K.U.J., K.A.S., A.G., W.C.G.) and Worldwide Research, Development, and Medical (A.S.A.), Pfizer, Pearl River - both in New York; iTrials-Hospital Militar Central (G.P.M.), Fundación INFANT (F.P.P.), and Fundación Respirar Clinical Research Unit (P.A.D.), Buenos Aires, and Clinica Mayo de Urgencias Médicas Cruz Blanca, San Miguel de Tucumán (C.L.) - all in Argentina; Vaccine Research and Development, Pfizer, Collegeville, PA (A.M.Z., Q.J.); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (M.P.); Vaccine Research and Development, Pfizer, Raleigh, NC (K.I.); Faculty of Medicine and Health Technology, Tampere University, and Finnish Vaccine Research - both in Tampere, Finland (M.R.); Fukuwa Clinic, Tokyo (Y.F.); Netcare Lakeview Hospital, Benoni, South Africa (N.H.); the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist - both in the Netherlands (L.J.B.); Indago Research and Health Center, Hialeah, FL (J.C.); Worldwide Safety, Pfizer, Milan (M.-M.L.); and Vaccine Research and Development, Pfizer Pharma, Berlin (B.S.-T.).; Pérez Marc G; From the University of Rochester Medical Center, Rochester (E.E.W., A.R.F.), and Vaccine Research and Development (E.D., G.C.V., M.I., D.E., T.M., R.N.S., K.S., D.C., K.K., K.U.J., K.A.S., A.G., W.C.G.) and Worldwide Research, Development, and Medical (A.S.A.), Pfizer, Pearl River - both in New York; iTrials-Hospital Militar Central (G.P.M.), Fundación INFANT (F.P.P.), and Fundación Respirar Clinical Research Unit (P.A.D.), Buenos Aires, and Clinica Mayo de Urgencias Médicas Cruz Blanca, San Miguel de Tucumán (C.L.) - all in Argentina; Vaccine Research and Development, Pfizer, Collegeville, PA (A.M.Z., Q.J.); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (M.P.); Vaccine Research and Development, Pfizer, Raleigh, NC (K.I.); Faculty of Medicine and Health Technology, Tampere University, and Finnish Vaccine Research - both in Tampere, Finland (M.R.); Fukuwa Clinic, Tokyo (Y.F.); Netcare Lakeview Hospital, Benoni, South Africa (N.H.); the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist - both in the Netherlands (L.J.B.); Indago Research and Health Center, Hialeah, FL (J.C.); Worldwide Safety, Pfizer, Milan (M.-M.L.); and Vaccine Research and Development, Pfizer Pharma, Berlin (B.S.-T.).; Zareba AM; From the University of Rochester Medical Center, Rochester (E.E.W., A.R.F.), and Vaccine Research and Development (E.D., G.C.V., M.I., D.E., T.M., R.N.S., K.S., D.C., K.K., K.U.J., K.A.S., A.G., W.C.G.) and Worldwide Research, Development, and Medical (A.S.A.), Pfizer, Pearl River - both in New York; iTrials-Hospital Militar Central (G.P.M.), Fundación INFANT (F.P.P.), and Fundación Respirar Clinical Research Unit (P.A.D.), Buenos Aires, and Clinica Mayo de Urgencias Médicas Cruz Blanca, San Miguel de Tucumán (C.L.) - all in Argentina; Vaccine Research and Development, Pfizer, Collegeville, PA (A.M.Z., Q.J.); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (M.P.); Vaccine Research and Development, Pfizer, Raleigh, NC (K.I.); Faculty of Medicine and Health Technology, Tampere University, and Finnish Vaccine Research - both in Tampere, Finland (M.R.); Fukuwa Clinic, Tokyo (Y.F.); Netcare Lakeview Hospital, Benoni, South Africa (N.H.); the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist - both in the Netherlands (L.J.B.); Indago Research and Health Center, Hialeah, FL (J.C.); Worldwide Safety, Pfizer, Milan (M.-M.L.); and Vaccine Research and Development, Pfizer Pharma, Berlin (B.S.-T.).; Falsey AR; From the University of Rochester Medical Center, Rochester (E.E.W., A.R.F.), and Vaccine Research and Development (E.D., G.C.V., M.I., D.E., T.M., R.N.S., K.S., D.C., K.K., K.U.J., K.A.S., A.G., W.C.G.) and Worldwide Research, Development, and Medical (A.S.A.), Pfizer, Pearl River - both in New York; iTrials-Hospital Militar Central (G.P.M.), Fundación INFANT (F.P.P.), and Fundación Respirar Clinical Research Unit (P.A.D.), Buenos Aires, and Clinica Mayo de Urgencias Médicas Cruz Blanca, San Miguel de Tucumán (C.L.) - all in Argentina; Vaccine Research and Development, Pfizer, Collegeville, PA (A.M.Z., Q.J.); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (M.P.); Vaccine Research and Development, Pfizer, Raleigh, NC (K.I.); Faculty of Medicine and Health Technology, Tampere University, and Finnish Vaccine Research - both in Tampere, Finland (M.R.); Fukuwa Clinic, Tokyo (Y.F.); Netcare Lakeview Hospital, Benoni, South Africa (N.H.); the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist - both in the Netherlands (L.J.B.); Indago Research and Health Center, Hialeah, FL (J.C.); Worldwide Safety, Pfizer, Milan (M.-M.L.); and Vaccine Research and Development, Pfizer Pharma, Berlin (B.S.-T.).; Jiang Q; From the University of Rochester Medical Center, Rochester (E.E.W., A.R.F.), and Vaccine Research and Development (E.D., G.C.V., M.I., D.E., T.M., R.N.S., K.S., D.C., K.K., K.U.J., K.A.S., A.G., W.C.G.) and Worldwide Research, Development, and Medical (A.S.A.), Pfizer, Pearl River - both in New York; iTrials-Hospital Militar Central (G.P.M.), Fundación INFANT (F.P.P.), and Fundación Respirar Clinical Research Unit (P.A.D.), Buenos Aires, and Clinica Mayo de Urgencias Médicas Cruz Blanca, San Miguel de Tucumán (C.L.) - all in Argentina; Vaccine Research and Development, Pfizer, Collegeville, PA (A.M.Z., Q.J.); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (M.P.); Vaccine Research and Development, Pfizer, Raleigh, NC (K.I.); Faculty of Medicine and Health Technology, Tampere University, and Finnish Vaccine Research - both in Tampere, Finland (M.R.); Fukuwa Clinic, Tokyo (Y.F.); Netcare Lakeview Hospital, Benoni, South Africa (N.H.); the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist - both in the Netherlands (L.J.B.); Indago Research and Health Center, Hialeah, FL (J.C.); Worldwide Safety, Pfizer, Milan (M.-M.L.); and Vaccine Research and Development, Pfizer Pharma, Berlin (B.S.-T.).; Patton M; From the University of Rochester Medical Center, Rochester (E.E.W., A.R.F.), and Vaccine Research and Development (E.D., G.C.V., M.I., D.E., T.M., R.N.S., K.S., D.C., K.K., K.U.J., K.A.S., A.G., W.C.G.) and Worldwide Research, Development, and Medical (A.S.A.), Pfizer, Pearl River - both in New York; iTrials-Hospital Militar Central (G.P.M.), Fundación INFANT (F.P.P.), and Fundación Respirar Clinical Research Unit (P.A.D.), Buenos Aires, and Clinica Mayo de Urgencias Médicas Cruz Blanca, San Miguel de Tucumán (C.L.) - all in Argentina; Vaccine Research and Development, Pfizer, Collegeville, PA (A.M.Z., Q.J.); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (M.P.); Vaccine Research and Development, Pfizer, Raleigh, NC (K.I.); Faculty of Medicine and Health Technology, Tampere University, and Finnish Vaccine Research - both in Tampere, Finland (M.R.); Fukuwa Clinic, Tokyo (Y.F.); Netcare Lakeview Hospital, Benoni, South Africa (N.H.); the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist - both in the Netherlands (L.J.B.); Indago Research and Health Center, Hialeah, FL (J.C.); Worldwide Safety, Pfizer, Milan (M.-M.L.); and Vaccine Research and Development, Pfizer Pharma, Berlin (B.S.-T.).; Polack FP; From the University of Rochester Medical Center, Rochester (E.E.W., A.R.F.), and Vaccine Research and Development (E.D., G.C.V., M.I., D.E., T.M., R.N.S., K.S., D.C., K.K., K.U.J., K.A.S., A.G., W.C.G.) and Worldwide Research, Development, and Medical (A.S.A.), Pfizer, Pearl River - both in New York; iTrials-Hospital Militar Central (G.P.M.), Fundación INFANT (F.P.P.), and Fundación Respirar Clinical Research Unit (P.A.D.), Buenos Aires, and Clinica Mayo de Urgencias Médicas Cruz Blanca, San Miguel de Tucumán (C.L.) - all in Argentina; Vaccine Research and Development, Pfizer, Collegeville, PA (A.M.Z., Q.J.); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (M.P.); Vaccine Research and Development, Pfizer, Raleigh, NC (K.I.); Faculty of Medicine and Health Technology, Tampere University, and Finnish Vaccine Research - both in Tampere, Finland (M.R.); Fukuwa Clinic, Tokyo (Y.F.); Netcare Lakeview Hospital, Benoni, South Africa (N.H.); the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist - both in the Netherlands (L.J.B.); Indago Research and Health Center, Hialeah, FL (J.C.); Worldwide Safety, Pfizer, Milan (M.-M.L.); and Vaccine Research and Development, Pfizer Pharma, Berlin (B.S.-T.).; Llapur C; From the University of Rochester Medical Center, Rochester (E.E.W., A.R.F.), and Vaccine Research and Development (E.D., G.C.V., M.I., D.E., T.M., R.N.S., K.S., D.C., K.K., K.U.J., K.A.S., A.G., W.C.G.) and Worldwide Research, Development, and Medical (A.S.A.), Pfizer, Pearl River - both in New York; iTrials-Hospital Militar Central (G.P.M.), Fundación INFANT (F.P.P.), and Fundación Respirar Clinical Research Unit (P.A.D.), Buenos Aires, and Clinica Mayo de Urgencias Médicas Cruz Blanca, San Miguel de Tucumán (C.L.) - all in Argentina; Vaccine Research and Development, Pfizer, Collegeville, PA (A.M.Z., Q.J.); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (M.P.); Vaccine Research and Development, Pfizer, Raleigh, NC (K.I.); Faculty of Medicine and Health Technology, Tampere University, and Finnish Vaccine Research - both in Tampere, Finland (M.R.); Fukuwa Clinic, Tokyo (Y.F.); Netcare Lakeview Hospital, Benoni, South Africa (N.H.); the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist - both in the Netherlands (L.J.B.); Indago Research and Health Center, Hialeah, FL (J.C.); Worldwide Safety, Pfizer, Milan (M.-M.L.); and Vaccine Research and Development, Pfizer Pharma, Berlin (B.S.-T.).; Doreski PA; From the University of Rochester Medical Center, Rochester (E.E.W., A.R.F.), and Vaccine Research and Development (E.D., G.C.V., M.I., D.E., T.M., R.N.S., K.S., D.C., K.K., K.U.J., K.A.S., A.G., W.C.G.) and Worldwide Research, Development, and Medical (A.S.A.), Pfizer, Pearl River - both in New York; iTrials-Hospital Militar Central (G.P.M.), Fundación INFANT (F.P.P.), and Fundación Respirar Clinical Research Unit (P.A.D.), Buenos Aires, and Clinica Mayo de Urgencias Médicas Cruz Blanca, San Miguel de Tucumán (C.L.) - all in Argentina; Vaccine Research and Development, Pfizer, Collegeville, PA (A.M.Z., Q.J.); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (M.P.); Vaccine Research and Development, Pfizer, Raleigh, NC (K.I.); Faculty of Medicine and Health Technology, Tampere University, and Finnish Vaccine Research - both in Tampere, Finland (M.R.); Fukuwa Clinic, Tokyo (Y.F.); Netcare Lakeview Hospital, Benoni, South Africa (N.H.); the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist - both in the Netherlands (L.J.B.); Indago Research and Health Center, Hialeah, FL (J.C.); Worldwide Safety, Pfizer, Milan (M.-M.L.); and Vaccine Research and Development, Pfizer Pharma, Berlin (B.S.-T.).; Ilangovan K; From the University of Rochester Medical Center, Rochester (E.E.W., A.R.F.), and Vaccine Research and Development (E.D., G.C.V., M.I., D.E., T.M., R.N.S., K.S., D.C., K.K., K.U.J., K.A.S., A.G., W.C.G.) and Worldwide Research, Development, and Medical (A.S.A.), Pfizer, Pearl River - both in New York; iTrials-Hospital Militar Central (G.P.M.), Fundación INFANT (F.P.P.), and Fundación Respirar Clinical Research Unit (P.A.D.), Buenos Aires, and Clinica Mayo de Urgencias Médicas Cruz Blanca, San Miguel de Tucumán (C.L.) - all in Argentina; Vaccine Research and Development, Pfizer, Collegeville, PA (A.M.Z., Q.J.); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (M.P.); Vaccine Research and Development, Pfizer, Raleigh, NC (K.I.); Faculty of Medicine and Health Technology, Tampere University, and Finnish Vaccine Research - both in Tampere, Finland (M.R.); Fukuwa Clinic, Tokyo (Y.F.); Netcare Lakeview Hospital, Benoni, South Africa (N.H.); the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist - both in the Netherlands (L.J.B.); Indago Research and Health Center, Hialeah, FL (J.C.); Worldwide Safety, Pfizer, Milan (M.-M.L.); and Vaccine Research and Development, Pfizer Pharma, Berlin (B.S.-T.).; Rämet M; From the University of Rochester Medical Center, Rochester (E.E.W., A.R.F.), and Vaccine Research and Development (E.D., G.C.V., M.I., D.E., T.M., R.N.S., K.S., D.C., K.K., K.U.J., K.A.S., A.G., W.C.G.) and Worldwide Research, Development, and Medical (A.S.A.), Pfizer, Pearl River - both in New York; iTrials-Hospital Militar Central (G.P.M.), Fundación INFANT (F.P.P.), and Fundación Respirar Clinical Research Unit (P.A.D.), Buenos Aires, and Clinica Mayo de Urgencias Médicas Cruz Blanca, San Miguel de Tucumán (C.L.) - all in Argentina; Vaccine Research and Development, Pfizer, Collegeville, PA (A.M.Z., Q.J.); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (M.P.); Vaccine Research and Development, Pfizer, Raleigh, NC (K.I.); Faculty of Medicine and Health Technology, Tampere University, and Finnish Vaccine Research - both in Tampere, Finland (M.R.); Fukuwa Clinic, Tokyo (Y.F.); Netcare Lakeview Hospital, Benoni, South Africa (N.H.); the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist - both in the Netherlands (L.J.B.); Indago Research and Health Center, Hialeah, FL (J.C.); Worldwide Safety, Pfizer, Milan (M.-M.L.); and Vaccine Research and Development, Pfizer Pharma, Berlin (B.S.-T.).; Fukushima Y; From the University of Rochester Medical Center, Rochester (E.E.W., A.R.F.), and Vaccine Research and Development (E.D., G.C.V., M.I., D.E., T.M., R.N.S., K.S., D.C., K.K., K.U.J., K.A.S., A.G., W.C.G.) and Worldwide Research, Development, and Medical (A.S.A.), Pfizer, Pearl River - both in New York; iTrials-Hospital Militar Central (G.P.M.), Fundación INFANT (F.P.P.), and Fundación Respirar Clinical Research Unit (P.A.D.), Buenos Aires, and Clinica Mayo de Urgencias Médicas Cruz Blanca, San Miguel de Tucumán (C.L.) - all in Argentina; Vaccine Research and Development, Pfizer, Collegeville, PA (A.M.Z., Q.J.); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (M.P.); Vaccine Research and Development, Pfizer, Raleigh, NC (K.I.); Faculty of Medicine and Health Technology, Tampere University, and Finnish Vaccine Research - both in Tampere, Finland (M.R.); Fukuwa Clinic, Tokyo (Y.F.); Netcare Lakeview Hospital, Benoni, South Africa (N.H.); the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist - both in the Netherlands (L.J.B.); Indago Research and Health Center, Hialeah, FL (J.C.); Worldwide Safety, Pfizer, Milan (M.-M.L.); and Vaccine Research and Development, Pfizer Pharma, Berlin (B.S.-T.).; Hussen N; From the University of Rochester Medical Center, Rochester (E.E.W., A.R.F.), and Vaccine Research and Development (E.D., G.C.V., M.I., D.E., T.M., R.N.S., K.S., D.C., K.K., K.U.J., K.A.S., A.G., W.C.G.) and Worldwide Research, Development, and Medical (A.S.A.), Pfizer, Pearl River - both in New York; iTrials-Hospital Militar Central (G.P.M.), Fundación INFANT (F.P.P.), and Fundación Respirar Clinical Research Unit (P.A.D.), Buenos Aires, and Clinica Mayo de Urgencias Médicas Cruz Blanca, San Miguel de Tucumán (C.L.) - all in Argentina; Vaccine Research and Development, Pfizer, Collegeville, PA (A.M.Z., Q.J.); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (M.P.); Vaccine Research and Development, Pfizer, Raleigh, NC (K.I.); Faculty of Medicine and Health Technology, Tampere University, and Finnish Vaccine Research - both in Tampere, Finland (M.R.); Fukuwa Clinic, Tokyo (Y.F.); Netcare Lakeview Hospital, Benoni, South Africa (N.H.); the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist - both in the Netherlands (L.J.B.); Indago Research and Health Center, Hialeah, FL (J.C.); Worldwide Safety, Pfizer, Milan (M.-M.L.); and Vaccine Research and Development, Pfizer Pharma, Berlin (B.S.-T.).; Bont LJ; From the University of Rochester Medical Center, Rochester (E.E.W., A.R.F.), and Vaccine Research and Development (E.D., G.C.V., M.I., D.E., T.M., R.N.S., K.S., D.C., K.K., K.U.J., K.A.S., A.G., W.C.G.) and Worldwide Research, Development, and Medical (A.S.A.), Pfizer, Pearl River - both in New York; iTrials-Hospital Militar Central (G.P.M.), Fundación INFANT (F.P.P.), and Fundación Respirar Clinical Research Unit (P.A.D.), Buenos Aires, and Clinica Mayo de Urgencias Médicas Cruz Blanca, San Miguel de Tucumán (C.L.) - all in Argentina; Vaccine Research and Development, Pfizer, Collegeville, PA (A.M.Z., Q.J.); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (M.P.); Vaccine Research and Development, Pfizer, Raleigh, NC (K.I.); Faculty of Medicine and Health Technology, Tampere University, and Finnish Vaccine Research - both in Tampere, Finland (M.R.); Fukuwa Clinic, Tokyo (Y.F.); Netcare Lakeview Hospital, Benoni, South Africa (N.H.); the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist - both in the Netherlands (L.J.B.); Indago Research and Health Center, Hialeah, FL (J.C.); Worldwide Safety, Pfizer, Milan (M.-M.L.); and Vaccine Research and Development, Pfizer Pharma, Berlin (B.S.-T.).; Cardona J; From the University of Rochester Medical Center, Rochester (E.E.W., A.R.F.), and Vaccine Research and Development (E.D., G.C.V., M.I., D.E., T.M., R.N.S., K.S., D.C., K.K., K.U.J., K.A.S., A.G., W.C.G.) and Worldwide Research, Development, and Medical (A.S.A.), Pfizer, Pearl River - both in New York; iTrials-Hospital Militar Central (G.P.M.), Fundación INFANT (F.P.P.), and Fundación Respirar Clinical Research Unit (P.A.D.), Buenos Aires, and Clinica Mayo de Urgencias Médicas Cruz Blanca, San Miguel de Tucumán (C.L.) - all in Argentina; Vaccine Research and Development, Pfizer, Collegeville, PA (A.M.Z., Q.J.); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (M.P.); Vaccine Research and Development, Pfizer, Raleigh, NC (K.I.); Faculty of Medicine and Health Technology, Tampere University, and Finnish Vaccine Research - both in Tampere, Finland (M.R.); Fukuwa Clinic, Tokyo (Y.F.); Netcare Lakeview Hospital, Benoni, South Africa (N.H.); the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist - both in the Netherlands (L.J.B.); Indago Research and Health Center, Hialeah, FL (J.C.); Worldwide Safety, Pfizer, Milan (M.-M.L.); and Vaccine Research and Development, Pfizer Pharma, Berlin (B.S.-T.).; DeHaan E; From the University of Rochester Medical Center, Rochester (E.E.W., A.R.F.), and Vaccine Research and Development (E.D., G.C.V., M.I., D.E., T.M., R.N.S., K.S., D.C., K.K., K.U.J., K.A.S., A.G., W.C.G.) and Worldwide Research, Development, and Medical (A.S.A.), Pfizer, Pearl River - both in New York; iTrials-Hospital Militar Central (G.P.M.), Fundación INFANT (F.P.P.), and Fundación Respirar Clinical Research Unit (P.A.D.), Buenos Aires, and Clinica Mayo de Urgencias Médicas Cruz Blanca, San Miguel de Tucumán (C.L.) - all in Argentina; Vaccine Research and Development, Pfizer, Collegeville, PA (A.M.Z., Q.J.); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (M.P.); Vaccine Research and Development, Pfizer, Raleigh, NC (K.I.); Faculty of Medicine and Health Technology, Tampere University, and Finnish Vaccine Research - both in Tampere, Finland (M.R.); Fukuwa Clinic, Tokyo (Y.F.); Netcare Lakeview Hospital, Benoni, South Africa (N.H.); the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist - both in the Netherlands (L.J.B.); Indago Research and Health Center, Hialeah, FL (J.C.); Worldwide Safety, Pfizer, Milan (M.-M.L.); and Vaccine Research and Development, Pfizer Pharma, Berlin (B.S.-T.).; Castillo Villa G; From the University of Rochester Medical Center, Rochester (E.E.W., A.R.F.), and Vaccine Research and Development (E.D., G.C.V., M.I., D.E., T.M., R.N.S., K.S., D.C., K.K., K.U.J., K.A.S., A.G., W.C.G.) and Worldwide Research, Development, and Medical (A.S.A.), Pfizer, Pearl River - both in New York; iTrials-Hospital Militar Central (G.P.M.), Fundación INFANT (F.P.P.), and Fundación Respirar Clinical Research Unit (P.A.D.), Buenos Aires, and Clinica Mayo de Urgencias Médicas Cruz Blanca, San Miguel de Tucumán (C.L.) - all in Argentina; Vaccine Research and Development, Pfizer, Collegeville, PA (A.M.Z., Q.J.); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (M.P.); Vaccine Research and Development, Pfizer, Raleigh, NC (K.I.); Faculty of Medicine and Health Technology, Tampere University, and Finnish Vaccine Research - both in Tampere, Finland (M.R.); Fukuwa Clinic, Tokyo (Y.F.); Netcare Lakeview Hospital, Benoni, South Africa (N.H.); the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist - both in the Netherlands (L.J.B.); Indago Research and Health Center, Hialeah, FL (J.C.); Worldwide Safety, Pfizer, Milan (M.-M.L.); and Vaccine Research and Development, Pfizer Pharma, Berlin (B.S.-T.).; Ingilizova M; From the University of Rochester Medical Center, Rochester (E.E.W., A.R.F.), and Vaccine Research and Development (E.D., G.C.V., M.I., D.E., T.M., R.N.S., K.S., D.C., K.K., K.U.J., K.A.S., A.G., W.C.G.) and Worldwide Research, Development, and Medical (A.S.A.), Pfizer, Pearl River - both in New York; iTrials-Hospital Militar Central (G.P.M.), Fundación INFANT (F.P.P.), and Fundación Respirar Clinical Research Unit (P.A.D.), Buenos Aires, and Clinica Mayo de Urgencias Médicas Cruz Blanca, San Miguel de Tucumán (C.L.) - all in Argentina; Vaccine Research and Development, Pfizer, Collegeville, PA (A.M.Z., Q.J.); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (M.P.); Vaccine Research and Development, Pfizer, Raleigh, NC (K.I.); Faculty of Medicine and Health Technology, Tampere University, and Finnish Vaccine Research - both in Tampere, Finland (M.R.); Fukuwa Clinic, Tokyo (Y.F.); Netcare Lakeview Hospital, Benoni, South Africa (N.H.); the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist - both in the Netherlands (L.J.B.); Indago Research and Health Center, Hialeah, FL (J.C.); Worldwide Safety, Pfizer, Milan (M.-M.L.); and Vaccine Research and Development, Pfizer Pharma, Berlin (B.S.-T.).; Eiras D; From the University of Rochester Medical Center, Rochester (E.E.W., A.R.F.), and Vaccine Research and Development (E.D., G.C.V., M.I., D.E., T.M., R.N.S., K.S., D.C., K.K., K.U.J., K.A.S., A.G., W.C.G.) and Worldwide Research, Development, and Medical (A.S.A.), Pfizer, Pearl River - both in New York; iTrials-Hospital Militar Central (G.P.M.), Fundación INFANT (F.P.P.), and Fundación Respirar Clinical Research Unit (P.A.D.), Buenos Aires, and Clinica Mayo de Urgencias Médicas Cruz Blanca, San Miguel de Tucumán (C.L.) - all in Argentina; Vaccine Research and Development, Pfizer, Collegeville, PA (A.M.Z., Q.J.); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (M.P.); Vaccine Research and Development, Pfizer, Raleigh, NC (K.I.); Faculty of Medicine and Health Technology, Tampere University, and Finnish Vaccine Research - both in Tampere, Finland (M.R.); Fukuwa Clinic, Tokyo (Y.F.); Netcare Lakeview Hospital, Benoni, South Africa (N.H.); the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist - both in the Netherlands (L.J.B.); Indago Research and Health Center, Hialeah, FL (J.C.); Worldwide Safety, Pfizer, Milan (M.-M.L.); and Vaccine Research and Development, Pfizer Pharma, Berlin (B.S.-T.).; Mikati T; From the University of Rochester Medical Center, Rochester (E.E.W., A.R.F.), and Vaccine Research and Development (E.D., G.C.V., M.I., D.E., T.M., R.N.S., K.S., D.C., K.K., K.U.J., K.A.S., A.G., W.C.G.) and Worldwide Research, Development, and Medical (A.S.A.), Pfizer, Pearl River - both in New York; iTrials-Hospital Militar Central (G.P.M.), Fundación INFANT (F.P.P.), and Fundación Respirar Clinical Research Unit (P.A.D.), Buenos Aires, and Clinica Mayo de Urgencias Médicas Cruz Blanca, San Miguel de Tucumán (C.L.) - all in Argentina; Vaccine Research and Development, Pfizer, Collegeville, PA (A.M.Z., Q.J.); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (M.P.); Vaccine Research and Development, Pfizer, Raleigh, NC (K.I.); Faculty of Medicine and Health Technology, Tampere University, and Finnish Vaccine Research - both in Tampere, Finland (M.R.); Fukuwa Clinic, Tokyo (Y.F.); Netcare Lakeview Hospital, Benoni, South Africa (N.H.); the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist - both in the Netherlands (L.J.B.); Indago Research and Health Center, Hialeah, FL (J.C.); Worldwide Safety, Pfizer, Milan (M.-M.L.); and Vaccine Research and Development, Pfizer Pharma, Berlin (B.S.-T.).; Shah RN; From the University of Rochester Medical Center, Rochester (E.E.W., A.R.F.), and Vaccine Research and Development (E.D., G.C.V., M.I., D.E., T.M., R.N.S., K.S., D.C., K.K., K.U.J., K.A.S., A.G., W.C.G.) and Worldwide Research, Development, and Medical (A.S.A.), Pfizer, Pearl River - both in New York; iTrials-Hospital Militar Central (G.P.M.), Fundación INFANT (F.P.P.), and Fundación Respirar Clinical Research Unit (P.A.D.), Buenos Aires, and Clinica Mayo de Urgencias Médicas Cruz Blanca, San Miguel de Tucumán (C.L.) - all in Argentina; Vaccine Research and Development, Pfizer, Collegeville, PA (A.M.Z., Q.J.); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (M.P.); Vaccine Research and Development, Pfizer, Raleigh, NC (K.I.); Faculty of Medicine and Health Technology, Tampere University, and Finnish Vaccine Research - both in Tampere, Finland (M.R.); Fukuwa Clinic, Tokyo (Y.F.); Netcare Lakeview Hospital, Benoni, South Africa (N.H.); the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist - both in the Netherlands (L.J.B.); Indago Research and Health Center, Hialeah, FL (J.C.); Worldwide Safety, Pfizer, Milan (M.-M.L.); and Vaccine Research and Development, Pfizer Pharma, Berlin (B.S.-T.).; Schneider K; From the University of Rochester Medical Center, Rochester (E.E.W., A.R.F.), and Vaccine Research and Development (E.D., G.C.V., M.I., D.E., T.M., R.N.S., K.S., D.C., K.K., K.U.J., K.A.S., A.G., W.C.G.) and Worldwide Research, Development, and Medical (A.S.A.), Pfizer, Pearl River - both in New York; iTrials-Hospital Militar Central (G.P.M.), Fundación INFANT (F.P.P.), and Fundación Respirar Clinical Research Unit (P.A.D.), Buenos Aires, and Clinica Mayo de Urgencias Médicas Cruz Blanca, San Miguel de Tucumán (C.L.) - all in Argentina; Vaccine Research and Development, Pfizer, Collegeville, PA (A.M.Z., Q.J.); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (M.P.); Vaccine Research and Development, Pfizer, Raleigh, NC (K.I.); Faculty of Medicine and Health Technology, Tampere University, and Finnish Vaccine Research - both in Tampere, Finland (M.R.); Fukuwa Clinic, Tokyo (Y.F.); Netcare Lakeview Hospital, Benoni, South Africa (N.H.); the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist - both in the Netherlands (L.J.B.); Indago Research and Health Center, Hialeah, FL (J.C.); Worldwide Safety, Pfizer, Milan (M.-M.L.); and Vaccine Research and Development, Pfizer Pharma, Berlin (B.S.-T.).; Cooper D; From the University of Rochester Medical Center, Rochester (E.E.W., A.R.F.), and Vaccine Research and Development (E.D., G.C.V., M.I., D.E., T.M., R.N.S., K.S., D.C., K.K., K.U.J., K.A.S., A.G., W.C.G.) and Worldwide Research, Development, and Medical (A.S.A.), Pfizer, Pearl River - both in New York; iTrials-Hospital Militar Central (G.P.M.), Fundación INFANT (F.P.P.), and Fundación Respirar Clinical Research Unit (P.A.D.), Buenos Aires, and Clinica Mayo de Urgencias Médicas Cruz Blanca, San Miguel de Tucumán (C.L.) - all in Argentina; Vaccine Research and Development, Pfizer, Collegeville, PA (A.M.Z., Q.J.); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (M.P.); Vaccine Research and Development, Pfizer, Raleigh, NC (K.I.); Faculty of Medicine and Health Technology, Tampere University, and Finnish Vaccine Research - both in Tampere, Finland (M.R.); Fukuwa Clinic, Tokyo (Y.F.); Netcare Lakeview Hospital, Benoni, South Africa (N.H.); the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist - both in the Netherlands (L.J.B.); Indago Research and Health Center, Hialeah, FL (J.C.); Worldwide Safety, Pfizer, Milan (M.-M.L.); and Vaccine Research and Development, Pfizer Pharma, Berlin (B.S.-T.).; Koury K; From the University of Rochester Medical Center, Rochester (E.E.W., A.R.F.), and Vaccine Research and Development (E.D., G.C.V., M.I., D.E., T.M., R.N.S., K.S., D.C., K.K., K.U.J., K.A.S., A.G., W.C.G.) and Worldwide Research, Development, and Medical (A.S.A.), Pfizer, Pearl River - both in New York; iTrials-Hospital Militar Central (G.P.M.), Fundación INFANT (F.P.P.), and Fundación Respirar Clinical Research Unit (P.A.D.), Buenos Aires, and Clinica Mayo de Urgencias Médicas Cruz Blanca, San Miguel de Tucumán (C.L.) - all in Argentina; Vaccine Research and Development, Pfizer, Collegeville, PA (A.M.Z., Q.J.); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (M.P.); Vaccine Research and Development, Pfizer, Raleigh, NC (K.I.); Faculty of Medicine and Health Technology, Tampere University, and Finnish Vaccine Research - both in Tampere, Finland (M.R.); Fukuwa Clinic, Tokyo (Y.F.); Netcare Lakeview Hospital, Benoni, South Africa (N.H.); the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist - both in the Netherlands (L.J.B.); Indago Research and Health Center, Hialeah, FL (J.C.); Worldwide Safety, Pfizer, Milan (M.-M.L.); and Vaccine Research and Development, Pfizer Pharma, Berlin (B.S.-T.).; Lino MM; From the University of Rochester Medical Center, Rochester (E.E.W., A.R.F.), and Vaccine Research and Development (E.D., G.C.V., M.I., D.E., T.M., R.N.S., K.S., D.C., K.K., K.U.J., K.A.S., A.G., W.C.G.) and Worldwide Research, Development, and Medical (A.S.A.), Pfizer, Pearl River - both in New York; iTrials-Hospital Militar Central (G.P.M.), Fundación INFANT (F.P.P.), and Fundación Respirar Clinical Research Unit (P.A.D.), Buenos Aires, and Clinica Mayo de Urgencias Médicas Cruz Blanca, San Miguel de Tucumán (C.L.) - all in Argentina; Vaccine Research and Development, Pfizer, Collegeville, PA (A.M.Z., Q.J.); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (M.P.); Vaccine Research and Development, Pfizer, Raleigh, NC (K.I.); Faculty of Medicine and Health Technology, Tampere University, and Finnish Vaccine Research - both in Tampere, Finland (M.R.); Fukuwa Clinic, Tokyo (Y.F.); Netcare Lakeview Hospital, Benoni, South Africa (N.H.); the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist - both in the Netherlands (L.J.B.); Indago Research and Health Center, Hialeah, FL (J.C.); Worldwide Safety, Pfizer, Milan (M.-M.L.); and Vaccine Research and Development, Pfizer Pharma, Berlin (B.S.-T.).; Anderson AS; From the University of Rochester Medical Center, Rochester (E.E.W., A.R.F.), and Vaccine Research and Development (E.D., G.C.V., M.I., D.E., T.M., R.N.S., K.S., D.C., K.K., K.U.J., K.A.S., A.G., W.C.G.) and Worldwide Research, Development, and Medical (A.S.A.), Pfizer, Pearl River - both in New York; iTrials-Hospital Militar Central (G.P.M.), Fundación INFANT (F.P.P.), and Fundación Respirar Clinical Research Unit (P.A.D.), Buenos Aires, and Clinica Mayo de Urgencias Médicas Cruz Blanca, San Miguel de Tucumán (C.L.) - all in Argentina; Vaccine Research and Development, Pfizer, Collegeville, PA (A.M.Z., Q.J.); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (M.P.); Vaccine Research and Development, Pfizer, Raleigh, NC (K.I.); Faculty of Medicine and Health Technology, Tampere University, and Finnish Vaccine Research - both in Tampere, Finland (M.R.); Fukuwa Clinic, Tokyo (Y.F.); Netcare Lakeview Hospital, Benoni, South Africa (N.H.); the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist - both in the Netherlands (L.J.B.); Indago Research and Health Center, Hialeah, FL (J.C.); Worldwide Safety, Pfizer, Milan (M.-M.L.); and Vaccine Research and Development, Pfizer Pharma, Berlin (B.S.-T.).; Jansen KU; From the University of Rochester Medical Center, Rochester (E.E.W., A.R.F.), and Vaccine Research and Development (E.D., G.C.V., M.I., D.E., T.M., R.N.S., K.S., D.C., K.K., K.U.J., K.A.S., A.G., W.C.G.) and Worldwide Research, Development, and Medical (A.S.A.), Pfizer, Pearl River - both in New York; iTrials-Hospital Militar Central (G.P.M.), Fundación INFANT (F.P.P.), and Fundación Respirar Clinical Research Unit (P.A.D.), Buenos Aires, and Clinica Mayo de Urgencias Médicas Cruz Blanca, San Miguel de Tucumán (C.L.) - all in Argentina; Vaccine Research and Development, Pfizer, Collegeville, PA (A.M.Z., Q.J.); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (M.P.); Vaccine Research and Development, Pfizer, Raleigh, NC (K.I.); Faculty of Medicine and Health Technology, Tampere University, and Finnish Vaccine Research - both in Tampere, Finland (M.R.); Fukuwa Clinic, Tokyo (Y.F.); Netcare Lakeview Hospital, Benoni, South Africa (N.H.); the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist - both in the Netherlands (L.J.B.); Indago Research and Health Center, Hialeah, FL (J.C.); Worldwide Safety, Pfizer, Milan (M.-M.L.); and Vaccine Research and Development, Pfizer Pharma, Berlin (B.S.-T.).; Swanson KA; From the University of Rochester Medical Center, Rochester (E.E.W., A.R.F.), and Vaccine Research and Development (E.D., G.C.V., M.I., D.E., T.M., R.N.S., K.S., D.C., K.K., K.U.J., K.A.S., A.G., W.C.G.) and Worldwide Research, Development, and Medical (A.S.A.), Pfizer, Pearl River - both in New York; iTrials-Hospital Militar Central (G.P.M.), Fundación INFANT (F.P.P.), and Fundación Respirar Clinical Research Unit (P.A.D.), Buenos Aires, and Clinica Mayo de Urgencias Médicas Cruz Blanca, San Miguel de Tucumán (C.L.) - all in Argentina; Vaccine Research and Development, Pfizer, Collegeville, PA (A.M.Z., Q.J.); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (M.P.); Vaccine Research and Development, Pfizer, Raleigh, NC (K.I.); Faculty of Medicine and Health Technology, Tampere University, and Finnish Vaccine Research - both in Tampere, Finland (M.R.); Fukuwa Clinic, Tokyo (Y.F.); Netcare Lakeview Hospital, Benoni, South Africa (N.H.); the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist - both in the Netherlands (L.J.B.); Indago Research and Health Center, Hialeah, FL (J.C.); Worldwide Safety, Pfizer, Milan (M.-M.L.); and Vaccine Research and Development, Pfizer Pharma, Berlin (B.S.-T.).; Gurtman A; From the University of Rochester Medical Center, Rochester (E.E.W., A.R.F.), and Vaccine Research and Development (E.D., G.C.V., M.I., D.E., T.M., R.N.S., K.S., D.C., K.K., K.U.J., K.A.S., A.G., W.C.G.) and Worldwide Research, Development, and Medical (A.S.A.), Pfizer, Pearl River - both in New York; iTrials-Hospital Militar Central (G.P.M.), Fundación INFANT (F.P.P.), and Fundación Respirar Clinical Research Unit (P.A.D.), Buenos Aires, and Clinica Mayo de Urgencias Médicas Cruz Blanca, San Miguel de Tucumán (C.L.) - all in Argentina; Vaccine Research and Development, Pfizer, Collegeville, PA (A.M.Z., Q.J.); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (M.P.); Vaccine Research and Development, Pfizer, Raleigh, NC (K.I.); Faculty of Medicine and Health Technology, Tampere University, and Finnish Vaccine Research - both in Tampere, Finland (M.R.); Fukuwa Clinic, Tokyo (Y.F.); Netcare Lakeview Hospital, Benoni, South Africa (N.H.); the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist - both in the Netherlands (L.J.B.); Indago Research and Health Center, Hialeah, FL (J.C.); Worldwide Safety, Pfizer, Milan (M.-M.L.); and Vaccine Research and Development, Pfizer Pharma, Berlin (B.S.-T.).; Gruber WC; From the University of Rochester Medical Center, Rochester (E.E.W., A.R.F.), and Vaccine Research and Development (E.D., G.C.V., M.I., D.E., T.M., R.N.S., K.S., D.C., K.K., K.U.J., K.A.S., A.G., W.C.G.) and Worldwide Research, Development, and Medical (A.S.A.), Pfizer, Pearl River - both in New York; iTrials-Hospital Militar Central (G.P.M.), Fundación INFANT (F.P.P.), and Fundación Respirar Clinical Research Unit (P.A.D.), Buenos Aires, and Clinica Mayo de Urgencias Médicas Cruz Blanca, San Miguel de Tucumán (C.L.) - all in Argentina; Vaccine Research and Development, Pfizer, Collegeville, PA (A.M.Z., Q.J.); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (M.P.); Vaccine Research and Development, Pfizer, Raleigh, NC (K.I.); Faculty of Medicine and Health Technology, Tampere University, and Finnish Vaccine Research - both in Tampere, Finland (M.R.); Fukuwa Clinic, Tokyo (Y.F.); Netcare Lakeview Hospital, Benoni, South Africa (N.H.); the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist - both in the Netherlands (L.J.B.); Indago Research and Health Center, Hialeah, FL (J.C.); Worldwide Safety, Pfizer, Milan (M.-M.L.); and Vaccine Research and Development, Pfizer Pharma, Berlin (B.S.-T.).; Schmoele-Thoma B; From the University of Rochester Medical Center, Rochester (E.E.W., A.R.F.), and Vaccine Research and Development (E.D., G.C.V., M.I., D.E., T.M., R.N.S., K.S., D.C., K.K., K.U.J., K.A.S., A.G., W.C.G.) and Worldwide Research, Development, and Medical (A.S.A.), Pfizer, Pearl River - both in New York; iTrials-Hospital Militar Central (G.P.M.), Fundación INFANT (F.P.P.), and Fundación Respirar Clinical Research Unit (P.A.D.), Buenos Aires, and Clinica Mayo de Urgencias Médicas Cruz Blanca, San Miguel de Tucumán (C.L.) - all in Argentina; Vaccine Research and Development, Pfizer, Collegeville, PA (A.M.Z., Q.J.); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (M.P.); Vaccine Research and Development, Pfizer, Raleigh, NC (K.I.); Faculty of Medicine and Health Technology, Tampere University, and Finnish Vaccine Research - both in Tampere, Finland (M.R.); Fukuwa Clinic, Tokyo (Y.F.); Netcare Lakeview Hospital, Benoni, South Africa (N.H.); the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist - both in the Netherlands (L.J.B.); Indago Research and Health Center, Hialeah, FL (J.C.); Worldwide Safety, Pfizer, Milan (M.-M.L.); and Vaccine Research and Development, Pfizer Pharma, Berlin (B.S.-T.).

Publisher: Massachusetts Medical Society Country of Publication: United States NLM ID: 0255562 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1533-4406 (Electronic) Linking ISSN: 00284793 NLM ISO Abbreviation: N Engl J Med Subsets: MEDLINE

Walsh EE; University of Rochester Medical Center, Rochester, NY.; Pérez Marc G; Hospital Militar Central, Buenos Aires, Argentina.; Falsey AR; University of Rochester Medical Center, Rochester, NY.; Jiang Q; Pfizer Vaccine Research and Development, Collegeville, PA.; Eiras D; Pfizer Vaccine Research and Development, Pearl River, NY.; Patton M; Pfizer Vaccine Research and Development, Marlow, United Kingdom.; Polack FP; Fundación INFANT, Buenos Aires, Argentina.; Llapur C; Clínica Mayo de Urgencias Medicas Cruz Blanca, San Miguel de Tucumán, Argentina.; Doreski PA; Fundación Respirar Clinical Research Unit, Buenos Aires, Argentina.; Zareba AM; Pfizer Vaccine Research and Development, Collegeville, PA.; Ilangovan K; Pfizer Vaccine Research and Development, Raleigh, NC.; Rämet M; Tampere University, Tampere, Finland.; Fukushima Y; Fukuwa Clinic, Tokyo, Japan.; Hussen N; Netcare Lakeview Hospital, Benoni, South Africa.; Bont LJ; University Medical Center Utrecht, Utrecht, the Netherlands.; Cardona J; Indago Research and Health Center, Hialeah, FL.; DeHaan E; Pfizer Vaccine Research and Development, Pearl River, NY.; Mikati T; Pfizer Vaccine Research and Development, Pearl River, NY.; Shah RN; Pfizer Vaccine Research and Development, Pearl River, NY.; Schneider K; Pfizer Vaccine Research and Development, Pearl River, NY.; Cooper D; Pfizer Vaccine Research and Development, Pearl River, NY.; Koury K; Pfizer Vaccine Research and Development, Pearl River, NY.; Lino MM; Pfizer Worldwide Safety, Milan, Italy.; Anderson AS; Pfizer Worldwide Research, Development, and Medical, Pearl River, NY.; Jansen KU; Pfizer Vaccine Research and Development, Pearl River, NY.; Swanson KA; Pfizer Vaccine Research and Development, Pearl River, NY.; Gruber WC; Pfizer Vaccine Research and Development, Pearl River, NY.; Schmoele-Thoma B; Pfizer Vaccine Research and Development, Berlin, Germany.; Gurtman A; Pfizer Vaccine Research and Development, Pearl River, NY alejandra.gurtman@pfizer.com.

Publisher: Massachusetts Medical Society Country of Publication: United States NLM ID: 0255562 Publication Model: Print Cited Medium: Internet ISSN: 1533-4406 (Electronic) Linking ISSN: 00284793 NLM ISO Abbreviation: N Engl J Med Subsets: MEDLINE; In Process

Kampmann B; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Madhi SA; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Munjal I; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Simões EAF; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Pahud BA; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Llapur C; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Baker J; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Pérez Marc G; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Radley D; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Shittu E; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Glanternik J; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Snaggs H; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Baber J; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Zachariah P; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Barnabas SL; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Fausett M; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Adam T; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Perreras N; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Van Houten MA; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Kantele A; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Huang LM; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Bont LJ; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Otsuki T; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Vargas SL; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Gullam J; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Tapiero B; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Stein RT; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Polack FP; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Zar HJ; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Staerke NB; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Duron Padilla M; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Richmond PC; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Koury K; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Schneider K; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Kalinina EV; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Cooper D; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Jansen KU; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Anderson AS; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Swanson KA; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Gruber WC; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).; Gurtman A; From the Medical Research Council Unit the Gambia, London School of Hygiene and Tropical Medicine, Fajara, Gambia (B.K.); the Institute for International Health Charité, Universitätsmedizin, Berlin (B.K.); the South African Medical Research Council (MRC) Vaccines and Infectious Diseases Analytics Research Unit, Infectious Diseases and Oncology Research Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg (S.A.M.), and Family Centre for Research with Ubuntu, Department of Paediatrics and Child Health, University of Stellenbosch (S.L.B.), and the Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, South African MRC Unit on Child and Adolescent Health, University of Cape Town (H.J.Z.), Cape Town - all in South Africa; Vaccine Research and Development, Pfizer, Pearl River, NY (I.M., B.A.P., D.R., J. Glanternik, H.S., P.Z., K.K., K.S., E.V.K., D.C., K.U.J., A.S.A., K.A.S., W.C.G., A.G.); Children's Hospital Colorado, Aurora (E.A.F.S.); Instituto de Maternidad y Ginecología Nuestra Señora de Las Mercedes, San Miguel de Tucumán (C.L.), and iTrials-Hospital Militar Central (G.P.M., F.P.P.) and iTrials (S.L.V.), Buenos Aires - all in Argentina; Clinical Research Prime, Idaho Falls, ID (J. Baker); Vaccine Research and Development, Pfizer, Hurley, United Kingdom (E.S.); Vaccine Clinical Research, Pfizer, Sydney, NSW (J. Baber), and the University of Western Australia School of Medicine, Vaccine Trials Group, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, and Perth Children's Hospital, Nedlands, WA (P.C.R.) - all in Australia; Boeson Research, Missoula, MT (M.F.); Meridian Clinical Research, Hastings, NE (T.A.); Asian Hospital and Medical Center, Manila, Philippines (N.P.); the Department of Pediatrics, Spaarne Gasthuis, Haarlem and Hoofddorp (M.A.V.H.), and the Departments of Pediatrics and Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, and Respiratory Syncytial Virus Network Foundation, Zeist (L.J.B.) - all in the Netherlands; Meilahti Vaccine Research Center, Inflammation Center, University of Helsinki and Helsinki University Hospital, Helsinki (A.K.); National Taiwan University Hospital, Taipei (L.-M.H.); the Department of Obstetrics and Gynecology, Sendai City Hospital, Sendai, Japan (T.O.); the Institute of Biomedical Sciences, University of Chile School of Medicine, Santiago, Chile (S.L.V.); University of Otago and New Zealand Clinical Research - both in Christchurch, New Zealand (J. Gullam); Centre Hospitalier Universitaire Sainte-Justine, Montreal (B.T.); Hospital Moinhos de Vento and Pontifícia Universidade Católica do Rio Grande do Sul - both in Porto Alegre, Brazil (R.T.S.); the Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark (N.B.S.); and Arké Study Management Organization, Mexico City (M.D.P.).

Publisher: Massachusetts Medical Society Country of Publication: United States NLM ID: 0255562 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1533-4406 (Electronic) Linking ISSN: 00284793 NLM ISO Abbreviation: N Engl J Med Subsets: MEDLINE