학술논문
Increasing Prevalence of HIV-1 Subtype A in Greece: Estimating Epidemic History and Origin
Document Type
research-article
Author
Multicentre Study on HIV Heterogeneity; Paraskevis, Dimitrios; Magiorkinis, Emmanouil; Magiorkinis, Gkikas; Sypsa, Vana; Paparizos, Vassilios; Lazanas, Marios; Gargalianos, Panagiotis; Antoniadou, Anastasia; Panos, Georgios; Chrysos, Georgios; Sambatakou, Helen; Karafoulidou, Anastasia; Skoutelis, Athanasios; Kordossis, Theodoros; Koratzanis, Georgios; Theodoridou, Maria; Daikos, Georgios L.; Nikolopoulos, Georgios; Pybus, Oliver G.; Hatzakis, Angelos
Source
The Journal of Infectious Diseases, 2007 Oct . 196(8), 1167-1176.
Subject
Language
English
ISSN
00221899
Abstract
Background. In North America and Europe, human immunodeficiency virus (HIV)-1 infection has typically been dominated by subtype B transmission. More recently, however, non-B subtypes have been increasingly reported in Europe. Methods. We analyzed 1158 HIV-1-infected individuals in Greece by DNA sequencing and phylogenetic analyses of protease and partial reverse-transcriptase regions. Results. We found that the prevalence of non-B subtypes has increased over time and that this significant trend can be mainly attributed to subtype A, which eventually surpassed subtype B in prevalence in 2004 (42% and 33%, respectively). Multivariate analysis revealed that the year of HIV diagnosis was independently associated with subtype A infection (odds ratio for being infected with subtype A for a 10-year increase in the time period of diagnosis, 2.09 [95% confidence interval, 1.36-3.24]; P