1. Division of Infection and Immunity, University College London, London, United Kingdom
2. National Institute for Health Research Biomedical Research Centre, London, United Kingdom
3. Department of Clinical Virology, UCL Hospitals National Health Service Foundation Trust, London, United Kingdom
4. Infection Control Service, UCL Hospitals National Health Service Foundation Trust, London, United Kingdom
5. Department of Blood Diseases, UCL Hospitals National Health Service Foundation Trust, London, United Kingdom
6. Department of Infectious Disease Informatics, Farr Institute of Health Informatics Research, London, United Kingdom
7. Institute of Epidemiology and Health Care, University College London, London, United Kingdom
8. Department of Population, Policy, and Practice, Great Ormond Street Institute of Child Health, University College London (UCL), London, United Kingdom