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

We recently reported a high divergence among African subtype F strains. Three well-
separated groups (F1, F2, and F3) have been shown based on the phylogenetic analysis of …

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

Recombination is an important way to generate genetic diversity. Accumulation of HIV-1 full-
length genomes in databases demonstrated that recombination is pervasive in viral strains …

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 …

BACKGROUND: Concerted efforts have been directed toward recruitment of community
rather than replacement donors in Brazil. Time trends and demographic correlates of human …

We systematically evaluated multiple and recombinant infections in an HIV-infected
population selected for vaccine trials. Seventy-nine HIV-1 infected persons in a clinical …

In this paper, we studied the variability of HIV-1 subtype F strains in Africa. For 11 viruses,
mainly of Central African origin, different parts of the genome were genetically characterized …

Background: There are few surveillance studies analyzing genotypes or primary
(transmitted) drug resistance in HIV-infected blood donors in Brazil. The aim of this study …

Development of drug resistance is the inevitable consequence of incomplete suppression of
virus plasma levels in HIV-1-infected patients treated with highly active antiretroviral therapy …