Praphan Phanupak is Professor in Immunology and the Director of the Thai Red Cross AIDS Research Centre (TRC-ARC). He talks about the incidence and prevalence of HIV infection in different parts of Thailand and about human experiments on Thai drug users.

Dr Luc Montagnier and Dr Lars Olof Kallings in Montagnier’s office and laboratory at the Pasteur Institute in Paris. They talk about the HIV virus and the difficulties and possibilities of finding effective antiretroviral drug combinatoions in the future.