1. MRC Centre for Global Infectious Disease Analysis and National Institute for Health Research (NIHR) Health Protection Research Unit in Modelling and Health Economics, Imperial College London School of Public Health, London, UK
2. Centre for Applied Statistics Courses, UCL Great Ormond Street Institute of Child Health, University College London, London, UK
3. Modelling and Economics Unit, National Infection Service, Public Health England, London, UK
4. Institute of Applied Health Research, University of Birmingham, Birmingham, UK
5. NIHR Birmingham Biomedical Research Centre, University Hospitals Birmingham NHS Foundation Trust and University of Birmingham, Birmingham, UK