Objective: To investigate the origin and to reconstruct the onset date of the HIV-1 subtype C
epidemic in Brazil. Design: Three independent datasets of subtype C sequences isolated …

Previous studies indicate that the HIV-1 subtype C epidemic in southern Brazil was initiated
by the introduction of a single founder strain probably originating from east Africa. However …

The HIV-1 has evolved swiftly and the scenario of HIV-1 genetic diversity is constantly
changing. In South America, recombinant forms of subtypes B, F1, and BF1 have historically …

The most prevalent HIV-1 clade in the global epidemics is C, and this clade is also
becoming important in the Brazilian epidemics. In this study, we characterized HIV-1 subtype …

Human immunodeficiency virus type 1 subtype C (HIV-1C) represents 30–65% of HIV
infections in southern Brazil, and isolated cases of HIV-1C infection have also been reported …

HIV-1 Subtype D occurs mainly in East and Central African countries, especially Uganda,
where the prevalence of HIV-1 infection is among the highest in the world. We present the …

Recent studies have demonstrated an increased prevalence of human immunodeficiency
virus type 1 (HIV1) subtype C in southern Brazil. Although Santa Catarina State (SC) is …

Background The global spread of HIV-1 has been accompanied by the emergence of
genetically distinct viral strains. Over the past two decades subtype C viruses, which …

The molecular and biological properties of HIV-1 subtype C strains from South Brazil were
investigated. We sequenced gag and env fragments of viruses from 22 HIV-1-infected …

Objective: Our aim was to investigate the monophyletic status of the HIV-1C that circulates in
South America and its phylogenetic relationships with other HIV-1C populations around the …