Abstract Background Although HIV-1 CRF12_BF and CRF38_BF are two epidemiologically
important recombinant lineages circulating in Argentina and Uruguay, little is known about …

Objectives: We previously reported HIV-1 infection in Warao Amerindians from Venezuela.
The aim of this study was to evaluate the extent and the dynamic of HIV-1 dissemination in …

Objective: To clarify the epidemic origin and molecular properties of the B′ subtype that is
an important strain in the HIV-1 epidemic in Asia. Design: The genealogical relationship …

Antiretroviral therapy has revolutionized the treatment of the human immunodeficiency virus
because it has improved the clinical outcomes of patients. It is essential that these drugs …

Objectives: To compare the population dynamics of HIV-2 and HIV-1, and to characterize
ongoing HIV-2 transmission in rural Guinea-Bissau. Design: Phylogenetic and …

ABSTRACT A human immunodeficiency virus (HIV)-preventive vaccine will likely need to
induce broad immunity that can recognize antigens expressed within circulating strains. To …

HIV, the cause of AIDS in humans, is characterized by great genetic heterogeneity. In
particular, HIV-1 group M subtypes are responsible for most of the infections worldwide. We …

Objective: To reconstruct the onset date of the HIV-1 B and F epidemics in Brazil based on
virus diversification over time. Design: We studied HIV-1 env V3 sequences (210nt) with a …

A recent increase in HIV diagnoses among men-having-sex-with-men (MSM) has been
shown by surveillance data from Europe and Italy, and new approaches to inferring viral …

The Human immunodeficiency virus type-1 (HIV-1) epidemic in the Caribbean region is
mostly driven by subtype B; but information about the pattern of viral spread in this …