Ronald D. Stall, professor focusing his work on AIDS and behavioral research, talks about the behavior changes within the homosexual community in the Castro District which had one of the highest HIV prevalences in North America in 1988.

Last part of the interview with the American AIDS activist and founder of Project Inform, Martin Delaney, in 2006. Here he talks about AIDS activism and the different stages of the antiretroviral drug development from AZT to triple combination treatment.