Human immunodeficiency virus (HIV) is the worldwide disseminated causative agent of
acquired immunodeficiency syndrome (AIDS). HIV is a member of the Lentivirus genus of …

The perspective for the development of anti-HIV/AIDS vaccines became a target sought by
several research groups and pharmaceutical companies. However, the complex virus …

HIV cross-sectional studies were conducted among high-risk populations in 9 countries of
South America. Enzyme-linked immunosorbent assay screening and Western blot …

The findings that BF intersubtype recombinant human immunodeficiency type 1 viruses (HIV-
1) with coincident breakpoints in pol are circulating widely in Argentina and that non …

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 …

The reconstruction of the epidemic history of several HIV populations, by using methods that
infer the population history from sampled gene sequence data, has revealed important …

The extreme variability of human immunodeficiency virus type 1 (HIV-1) makes it possible to
conduct transmission studies on the basis of genetic analysis and to trace global and local …

The molecular epidemiology of HIV-1 strains circulating in Belem-PA and Macapa-AP, in the
Northern region of Brazil, is described using sequences of the C2V3 segment of the env and …

Background: Retrovirus infections among injecting drug users (IDUs), a core at-risk
population for both HIV-1 and HTLV-I/II infections in Brazil, were assessed within an ongoing …

Objective Genotype determination and risk group analysis of HIV-1 infected individuals in
selected regions of South America. Design Cross-sectional convenience sampling of HIV-1 …