Professor Andrew Grulich is head of the HIV Epidemiology and Prevention Program at the Kirby Institute, University of New South Wales. He specialises in the epidemiology, prevention, and natural history of sexually transmitted infections. His research interests include the links between infection, immune function and cancer and the transmission and prevention of HIV and sexually transmitted infections in homosexual men. Much of his cancer work is focused on the study of cohorts of people with immune deficiency as sentinel populations at risk of infection-related cancer, and on human papillomavirus-related cancers. In HIV prevention, his work focuses on the intersection of biomedical and behavioural approaches, particularly as it relates to gay men. He has published over 300 peer-reviewed articles.