[1] UK Hlth Secur Agcy, Blood Safety Hepatitis Sexually Transmitted Infec, London, England
[2] George House Trust, HIV Advice, Support & Informat Serv, Manchester, Lancs, England
[3] Addenbrookes Hosp, HIV & Infect Dis, Cambridge, England
[4] Univ Hosp Sussex, Worthing Sexual Hlth Clin, Worthing, England
[5] UK Hlth Secur Agcy, COVID 19 Vaccines & Epidemiol Div, London, England
[6] UCL, Inst Global Hlth, London, England
[7] UCL, Infect & Populat Hlth, London, England
[8] NSW Hlth, Populat & Publ Hlth, Sydney, NSW, Australia
[9] UK Hlth Secur Agcy, Hlth Protect Operat, Oxford, England