Part 1 of two. “The Age of AIDS” traces the pandemic over the past 25 years, beginning with the virus's eary cases. Included: political denial; social stigma; the contamination of blood supplies; and the virus's personal toll. Dr. Jim Curran, who headed the CDC's AIDS initiative in the1980s, recounts the story of a Florida family whose house was burned down because their children were hemophiliacs with AIDS. Also: the impact of the deaths of Rock Hudson and Ryan White.