Methods: We used a 2010–2011 cohort of HIV-negative adults in rural South Africa who
were 40 years or older at retest in 2015–2016 to estimate HIV incidence over a 5-year …

Objectives: To understand the stabilization in HIV prevalence in South Africa, and why HIV
prevalence has not declined further, despite behavior change and apparently moderate risk …

Objectives: To assess whether differences in age between sexual partners affect the risk of
HIV infection in female adolescents and young adults. Methods: A total of 6177 ever sexually …

A greater knowledge of the burden of HIV in rural areas of Southern Africa is needed,
especially among older adults. We conducted a cross-sectional biomarker survey in the rural …

Objective: Evaluate factors associated with HIV transmission risk behavior among HIV-
infected adults in Uganda. Design: Cross-sectional and nationally representative study …

Objective: To assess whether sexually transmitted infections (STIs) and sexual behavior are
independently associated with HIV-1 among adult women, men, and teenagers in rural …

ABSTRACT In the Democratic Republic of Congo no previous studies have assessed the
factors associated with different patterns of condom use and with multiple sexual partners …

Objective: To examine changes in sexual behaviour among men in urban Tanzania. Design:
An observational cohort study among factory workers during 1991–1994. Methods: Data …

Background Our intention was to analyze demographic and contextual factors associated
with sexual risk taking among HIV-infected patients on antiretroviral treatment (ART) in …

Background HIV prevalence differs by more than an order of magnitude between South
Africa's racial groups. Comparing the sexual behaviors and other risk factors for HIV …