New research may have finally answered an old question.
Malawi says it will no longer enforce anti-homosexuality laws but dangerous homophobia persists on the country's streets - and in its clinics.
A new injectable drug could change the face of HIV prevention and the revolution might start right here in South Africa.
Recently the first participants in the HVTN 702 study received jabs of a vaccine that could stop HIV in its tracks
One tiny protein may hold the secret to ending the HIV pandemic.