1 UCL Department of Renal Medicine, Royal Free Hospital, Rowland Hill Street, London, UK; The Francis Crick Institute, London NW1 1AT, UK.
2 COVID Surveillance Unit, London NW1 1AT, UK.
3 The Francis Crick Institute, London NW1 1AT, UK.
4 The Francis Crick Institute, London NW1 1AT, UK; National Institute for Health Research (NIHR) University College London Hospitals (UCLH) Biomedical Research Centre and NIHR UCLH Clinical Research Facility, London, UK.
5 Worldwide Influenza Centre, London NW1 1AT, UK.
6 The Francis Crick Institute, London NW1 1AT, UK; University College London, London, UK.
7 The Francis Crick Institute, London NW1 1AT, UK; The Francis Crick Institute, London NW1 1AT, UK; Genotype-to-Phenotype UK National Virology Consortium, London, UK.
8 London Northwest University Healthcare NHS Trust, London, UK.
9 Central and North West London NHS Foundation Trust, London, UK; University College London, London, UK.
10 The Francis Crick Institute, London NW1 1AT, UK; Department of Infectious Disease, St Mary's Hospital, Imperial College London, London, UK.
11 National Institute for Health Research (NIHR) University College London Hospitals (UCLH) Biomedical Research Centre and NIHR UCLH Clinical Research Facility, London, UK; University College London, London, UK.
12 The Francis Crick Institute, London NW1 1AT, UK; Genotype-to-Phenotype UK National Virology Consortium, London, UK.
13 COVID Surveillance Unit, London NW1 1AT, UK; The Francis Crick Institute, London NW1 1AT, UK. Electronic address: mary.wu@crick.ac.uk.