Sharon Lewin, Australian Infectious Disease physician and researcher, talks about the advances in HIV research and challenges for the future.

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.

Mary Marovich, medical scientist at The Walter Reed Army Medical Center in Washington, talks about the difficulties and possibilities of eventually finding an AIDS vaccine solution.