Published on March 17, 2015 by

Are HIV prevalence and incidence declines in sub-Saharan Africa driven by changes in sexual risk behaviour?

Individuals across Africa may have changed their sexual behaviour following the visibility of AIDS in the public sphere in the mid to late 1990s. Though each change in behaviour may have been small, the changes affected simultaneously different aspects of individual sexuality, and added up cumulatively into a moderate reduction in sexual behaviour at the individual level. In turn, this change in individual behaviour was translated into massive disruption of sexual networks at the population level. This made it difficult for HIV to propagate in the population leading to large declines in HIV incidence and prevalence.