XIX International AIDS Conference in Washington D.C. Barton Haynes from the Duke Human Vaccine Institute (DHVI) has been working in the HIV vaccine field since 1985. Here he talks about the scientific difficulties of finding an HIV vaccine.

Annual HIV research conference arranged by IHV. Dr Robert Gallo holds a lecture on the history of medical research on human retroviruses. He also talks about the early discoveries of t-cell leukemia in Japanese patients, which led to the discovery of HTLV-1.