Professor Graham Medley is a Professor of Infectious Disease Modelling and the Director of the Centre for the Mathematical Modelling of Infectious Diseases (CMMID) at the London School of Hygiene and Tropical Medicine, UK. His main interest is the transmission dynamics of infectious disease, and particularly in understanding how interventions are and should be designed to control infectious disease, including both the biological (e.g. immune response) and societal action (e.g. immunisation). His current research focuses on visceral leishmaniasis, schistosomiasis, RSV, HIV and UK vaccination policy. Professor Medley is also a member of the Neglected Tropical Disease Modelling Consortium and the SPEAK India Consortium, and is on the Board of Reviewing Editors for Science, a Joint Editor for Epidemics, an expert group in the Infected Blood Inquiry, and chair of the UK Scientific Pandemic Influenza Group on Modelling (SPI-M).