1. Reference Services Division, UK Health Security Agency (UKHSA), London, United Kingdom
2. Department of Surgery and Translational Medicine, University of Milan-Bicocca, Monza, Italy
3. Immunisation and Vaccine-Preventable Diseases Division, UKHSA, London, United Kingdom
4. Blood Safety, Hepatitis, Sexually Transmitted Infections and HIV Division, UKHSA, London, United Kingdom