Dr. Catherine (Cate) Hankins is an Honorary Professor at the London School of Hygiene and Tropical Medicine in the Faculty of Epidemiology and Population Health, and consultant science adviser at UNAIDS. Until November 2011, she was the Chief Scientific Adviser to UNAIDS, leading the UNAIDS’ knowledge translation team focused on HIV prevention trials from the ethical and participatory conduct of trials to interpreting and communicating about results to supporting country implementation of proven biomedical HIV prevention interventions within a combination prevention framework. She also co-managed the WHO-UNAIDS HIV Vaccine Initiative. She continues to be the editor of the UNAIDS science blog HIV This Week. Dr. Hankins is a member of the Scientific Advisory Group of the US National Institutes of Health HIV Prevention Trials Network, the Scientific Advisory Board of the Global HIV Vaccine Enterprise, the WHO-UNAIDS HIV Vaccine Initiative Advisory Committee, and the Global HIV Prevention Working Group. She is the current chair of the Scientific Advisory Board of CAPRISA, the Centre for the AIDS Programme of Research in South Africa. A fellow of the Royal College of Physicians of Canada and former President of the Canadian Association for HIV Research, Dr. Hankins was a member of the Canadian National Advisory Committee on AIDS for eight years, chairing the epidemiology sub-committee, and was the principal investigator of the Canadian Women's HIV Study for a decade. She chaired a variety of Canadian research peer review committees and was principal investigator for studies involving prisoners, people who inject drugs, transgendered people, and sex workers, as well as population-based epidemiological studies. Before joining UNAIDS, she was a consultant for UNDP, WHO, UNFPA, and CIDA. She has authored or co-authored more than 200 peer-reviewed scientific papers.