Paul T. Heath is a Professor in Paediatric Infectious Diseases at St George’s, University of London, where he is the Director of the Vaccine Institute and Director of the Institute of Infection and Immunity. His training was at the Royal Children’s Hospital, Melbourne; the John Radcliffe Hospital, Oxford; and St George’s Hospital, London. His research interests are in the epidemiology of vaccine preventable diseases, in clinical vaccine trials, particularly in at-risk groups and in perinatal infections. He coordinates the UK Paediatric Vaccine Group (UKPVG), is a member of the JCVI, co-Chair of the UK Infectious Diseases Vaccine Research Forum and a member of the WHO Group B Streptococcus Technical Advisory Group.