1 National Microbiology Services NHS Blood and Transplant London UK.
2 Virology Reference Department National Infection Service, Public Health England London UK.
3 NHS Blood and Transplant John Radcliffe Hospital Oxford UK.
4 Radcliffe Department of Medicine and BRC Haematology Theme University of Oxford, John Radcliffe Hospital Oxford UK.
5 Nuffield Department of Surgical Sciences University of Oxford Oxford UK.
6 Organ Transplant Centre Oxford University Hospitals NHS Foundation Trust Oxford UK.
7 Centre for Infectious Disease Control, WHO COVID-19 Reference Laboratory National Institute for Public Health and the Environment Bilthoven The Netherlands.
8 Deparment of Immunopathology Sanquin Research and Landsteiner Laboratory Academic Medical Centre Amsterdam The Netherlands.