Professor Stephen Locarnini is a medical virologist (MBBS, BSc(Hons), PhD, FRC[Path]) and an internationally recognised authority in the field of hepatitis virology. His current position is as the Head of Research & Molecular Development at the Victorian Infectious Diseases Reference Laboratory (VIDRL). He is also Director of the World Health Organisation (WHO) Regional Reference Laboratory for Hepatitis B, both located at the new Doherty Institute in Melbourne. Prof Locarnini’s area of research is predominantly viral hepatitis, control and treatment. The current focus of research is blood borne viruses: hepatitis B, hepatitis C and co-infection with the human immunodeficiency virus (HIV). His present major research interests include viral hepatitis and antiviral chemotherapy with an emphasis on the basic virology of the various agents of hepatitis, the molecular pathogenesis of hepatitis, as well as prevention and public health control measures. Identification of new virological targets and development of “cure” strategies in hepatitis B are the major focus of his research group. From 1991 to 1998 he was Director, Virus Laboratory at Fairfield Hospital and in 1993 became the inaugural Director of VIDRL.