Professor Paul Elliott is clinical Professor of epidemiology and public health medicine in the School of Public Health at Imperial College London, and honorary consultant in public health at Imperial College NHS Healthcare Trust. He is an emeritus National Institute for Health and Care Research (NIHR) senior investigator and prior to becoming Director of the CECTH, he was Deputy Director of the HPRU on the Health Impacts of Environmental Hazards. In 2009 he established the MRC-UK Health Security Agency for Environment and Health at Imperial in collaboration with Prof Frank Kelly’s Environmental Research Group. The current MRC Centre for Environment and Health is an internationally established centre for environmental sciences research and postgraduate training with a wide-ranging research programme investigating environmental health problems of public health importance. Professor  Elliott is also Associate Director of Health Data Research UK London, a founding member of the UK Biobank, former chair of the MRC Population Systems and Medicine Board and member of the MRC/National Institute for Health and Care Research NIHR/ESRC Strategic Priorities Fund Multimorbidity Steering Group.  He is scientific lead for large epidemiological studies including the Airwave Health Monitoring Study of British police officers and staff and of the Real Time Assessment of Community Transmission (REACT) programme of research into the prevalence and spread of the SARS-CoV-2 virus.