1. Blood Safety, Hepatitis, Sexually Transmitted Infections and HIV Division, UK Health Security Agency , London , United Kingdom
2. Department of Epidemiology and Public Health, UCL , London , United Kingdom
3. Bradford Institute for Health Research, Bradford Teaching Hospitals NHS Foundation Trust , Bradford , United Kingdom
4. Department of Medicine, Dalhousie University , Halifax, Nova Scotia , Canada
5. Department of Public Health, Environments and Society, London School of Hygiene & Tropical Medicine , London , United Kingdom
6. Public Health Institute, Liverpool John Moores University , Liverpool , United Kingdom