XVII International AIDS Conference in Mexico City. Swedish Dr Lars Olof Kallings who founded the International AIDS Society (IAS) in 1988 and who is now the United Nations Special Envoy for AIDS in Eastern Europe, reflects on the history of the AIDS movement.

José Esparza is a scientist who has been working many years at WHO and within UNAIDS. He has been known for his work on HIV vaccines. Here he talks about vaccine trials and the future development of vaccines for developing and developed countries.