XVII International AIDS Conference in Mexico City. Interview with Dr Mervyn Silverman from San Francisco, who has been active in the AIDS movement since the early 80's. Here he reflects on the leadership of UNAIDS Director Peter Piot.

XVII International AIDS Conference in Mexico City. Ending of a panel session on the vaccine trials of the International AIDS Vaccine Initiative (IAVI). Seth Berkley, Alan Bernstein and Omu Anzala respond to questions from the audience.