XIX International AIDS Conference. Session on Pediatrics with medical doctors and scientists discussing prevention of mother-to-child transmission and the development of antiretroviral treatments suitable for infants and small children.

Closing session of the XIX International AIDS Conference with speakers such as Bill Clinton, the two co-chairs of the conference Elly Katabira and Diane Havlir, US politician Nancy Pelosi, Françoise Barré-Sinoussi, and many activists and community leaders.

XIX International AIDS Conference press conference with Hollywood celebrity Debra Messing.

Helene Gayle is an AIDS expert who has been working in many different initiatives in the US, among them the Centers for Disease Control (CDC). She also works in President Obama's advisory group on HIV/AIDS. Here she talks about understanding and changing behaviors.