South Africa and Zimbabwe have made significant strides to roll out antiretrovirals. But the regional expansion of treatment programmes still needs work.
Stemming high HIV rates among adolescent girls and young women in sub-Saharan Africa has become a challenge due to the cycle of transmission.
Medical circumcision in settings where there are high rates of HIV will only be successful if these interventions take into account local beliefs about circumcision.
Bill Gates, who has been identified as the world's most significant donor in the fight against AIDS, shares his thoughts on the pandemic with Africa's most prominent HIV/AIDS academics.
Trials have shown that rates of HIV infection are reduced if people not infected with HIV take anti-retrovirals - known as pre-exposure prophylaxis (PrEP). But adherence to a daily dose is a problem.
The stories of HIV positive women in Tanzania often go unheard outside the communities in which they live.
Women who were found to have lied in a clinical trial testing anti-HIV drugs were heavily criticised. But there are several factors that drove them to lie.
Scientists are developing various products that can provide contraception and protection from sexually transmitted infections and HIV at the same time.
Although men make up two-thirds of HIV-related deaths, there are not enough services geared towards helping them.