Dr. Dan Wu, PhD, MSc, MBBS, is a public health researcher with a special interest in using innovative strategies to facilitate healthy behaviours adoption among affected populations. She is an assistant professor at the London School of Hygiene and Tropical Medicine. Her research uses several novel interventions including crowdsourcing, pay-it-forward, and secondary distributions to improve uptake of preventive services for HIV/STIs and other infectious diseases. Her research findings were published in JIAS, Clinical Infectious Diseases, Lancet HIV, The Lancet Gastroenterology & Hepatology. She is currently leading projects to investigate sexual health among people aged above 50, a neglected subpopulation in terms of sexual health research and service delivery, the feasibility of pay-it-forward to improve influenza and HPV vaccine uptake, and crowdsourcing to empower people living with or affected by viral hepatitis. She helped organize over 10 crowdsourcing open calls and an international hackathon to develop the global consensus statement on a short, inclusive sexual health survey that is appropriate for low- and middle-income countries. She received her MSc from the University College London, PhD from the University of Hong Kong, and early career training from University of North Carolina at Chapel Hill (Project China) and the London School of Hygiene and Tropical Medicine (Newton International Fellow).