Antiretroviral therapy (ART) has the potential to prevent human immunodeficiency virus
(HIV) transmission by reducing the concentration of HIV in blood and genital secretions …

Summary Background High plasma HIV-1 RNA concentrations are associated with
increased risk of HIV-1 transmission. Initiation of antiretroviral therapy (ART) reduces plasma …

There have been dramatic increases in access to antiretroviral therapy (ART) across the
developing world, and growing public health attention has focused on the possibility of …

This working paper provides a detailed technical description of the THEMBISA model, an
integrated demographic and epidemiological model of the South African HIV/AIDS epidemic …

Background Disclosure of HIV status supports risk reduction and facilitates access to
prevention and care services, but can be inhibited by the fear of negative repercussions. We …

Background Globally, there were an estimated 7.1 million new syphilis infections in 2020,
with more than 30% of these new infections reported in African countries such as Sierra …

We explore changes in sexual risk behaviour over the first year of antiretroviral therapy
(ART) among a cohort of patients in Cape Town South Africa initiating treatment in five …

Background: Long-term impact of antiretroviral therapy (ART) on sexual HIV-transmission
risk in Africa is unknown. We assessed sexual behavior changes and estimated HIV …

In Kenya, there was a reported decline in HIV incidence and prevalence among those aged
15 to 64 years and children. Despite the decline, closer assessment of psychosocial issues …

Background Several studies on the sexual risk behaviors in sub-Saharan Africa have
reported that the initiation of antiretroviral therapy leads to safer sexual behaviors. There is …