1. Infection and Global Health Research, School of Medicine, University of St Andrews, St Andrews, UK
2. NHS Lothian Infection Service, Specialist Virology Laboratory, Royal Infirmary of Edinburgh, Edinburgh, UK
3. Blizzard Institute, Queen Mary University of London, London, UK
4. Royal London Hospital, Barts Health NHS Trust, London, UK
5. Division of Infectious Diseases, Brigham and Women’s Hospital, Boston, Massachusetts, USA
6. Harvard Medical School, Boston, Massachusetts, USA