Dr Jeff Jin is a senior lecturer and an infectious disease and cancer epidemiologist at the Kirby Institute, UNSW. He completed his PhD in 2006 on the epidemiology of sexually transmissible infections in gay men based on the Health in Men study. Dr Jin's research interests include the epidemiology of sexually transmitted infections and human papillomavirus related anal cancer, HIV risk and prevention, and the methodology in epidemiological studies. He currently leads a biomarker study as part of the Study of the Prevention of Anal Cancer (SPANC) aiming to improve anal cancer screening in high-risk populations. Dr Jin is also centrally involved with the other ongoing cohort studies, including the Opposites Attract and the Following Lives Undergoing Change (Flux) studies as a co-chief investigator.