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Local and global spatio‐temporal dynamics of HIV‐1 subtype F1
Author(s) -
Lai Alessia,
Ciccozzi Massimo,
Franzetti Marco,
Simonetti Francesco R.,
Bozzi Giorgio,
Binda Francesca,
Rosi Andrea,
Bonora Stefano,
De Luca Andrea,
Balotta Claudia,
Zehender Gianguglielmo
Publication year - 2014
Publication title -
journal of medical virology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 121
eISSN - 1096-9071
pISSN - 0146-6615
DOI - 10.1002/jmv.23783
Subject(s) - romanian , phylogeography , geography , clade , demography , evolutionary biology , biology , genealogy , genetics , history , phylogenetics , gene , sociology , philosophy , linguistics
Previous studies have attempted to explore the origin of the F1 subtype, but the precise origin of the Romanian and South American F1 variants remains controversial. As the F1 subtype is the most frequent non‐B variant among Europeans residing in Italy, the aim of this study was to estimate its phylogeography in order to reconstruct its origin and route of dispersion. The phylogeographical analyses, which were made using the Bayesian Markov Chain Monte Carlo approach and BEAST software, revealed two significant clades: the first included all of the Romanian strains together with a few Italian and four African isolates; the second encompassed all of the South American sequences and the large majority of Italian variants. By putting the African reference sequences into two discrete groups based on specific countries, phylogeographic analysis indicated that the F1 epidemic originated in Cameroon/Democratic Republic of Congo in the early 1940s, and was exported to South America 10 years later. Subsequently, the F1 virus spread to Angola and, from there, was exported to Romania in the early 1960s. It reached Italy in the 1970s from South America and Romania. The South American and Romanian variants of F1 have different African countries of origin and different temporal spreads. The South American variant seems to be characterized by multiple introduction events, whereas the Romanian strain probably spread as a result of a single entry. Two different pathways from South America and Romania led the F1 variant to Italy in the 1970s. J. Med. Virol. 86:186–192, 2014 . © 2013 Wiley Periodicals, Inc.

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