Conall Watson is a consultant epidemiologist in the UK Health Security Agency, RSV lead in the Immunisation and Vaccine-Preventable Diseases Division and joint head of the Respiratory Viruses Surveillance Section. Conall’s team have provided evidence and clinical leadership for the introduction and expansion of the UK national RSV immunisation programmes, and are responsible for impact surveillance in England. He was previously clinical lead for the UK influenza vaccination programmes, including pandemic disease, and a co-investigator in the Ebola ring vaccination trial. He has a PhD in infectious disease dynamics from the London School of Hygiene and Tropical Medicine after first training as a clinical pharmacist and in public health.