학술논문

Genomics and epidemiology of the P.1 SARS-CoV-2 lineage in Manaus, Brazil
Document Type
article
Source
Science. 372(6544)
Subject
Human Genome
Immunization
Pneumonia & Influenza
Lung
Prevention
Genetics
Vaccine Related
Biotechnology
Pneumonia
Emerging Infectious Diseases
Biodefense
Infectious Diseases
Infection
Good Health and Well Being
Angiotensin-Converting Enzyme 2
Brazil
COVID-19
Communicable Diseases
Emerging
Epidemiological Monitoring
Genome
Viral
Genomics
Humans
Models
Theoretical
Molecular Epidemiology
Mutation
Protein Binding
SARS-CoV-2
Spike Glycoprotein
Coronavirus
Viral Load
General Science & Technology
Language
Abstract
Cases of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection in Manaus, Brazil, resurged in late 2020 despite previously high levels of infection. Genome sequencing of viruses sampled in Manaus between November 2020 and January 2021 revealed the emergence and circulation of a novel SARS-CoV-2 variant of concern. Lineage P.1 acquired 17 mutations, including a trio in the spike protein (K417T, E484K, and N501Y) associated with increased binding to the human ACE2 (angiotensin-converting enzyme 2) receptor. Molecular clock analysis shows that P.1 emergence occurred around mid-November 2020 and was preceded by a period of faster molecular evolution. Using a two-category dynamical model that integrates genomic and mortality data, we estimate that P.1 may be 1.7- to 2.4-fold more transmissible and that previous (non-P.1) infection provides 54 to 79% of the protection against infection with P.1 that it provides against non-P.1 lineages. Enhanced global genomic surveillance of variants of concern, which may exhibit increased transmissibility and/or immune evasion, is critical to accelerate pandemic responsiveness.