A.She has served on a number of UK and Scottish Government COVID-19 advisory bodies; all these roles were unremunerated. C.E.B. declares that their institute was awarded a grant from UKRI/NIHR to complete this work; the author reports grants from GlaxoSmithKline, AstraZeneca, Sanofi, Regeneron, Boehringer Ingelheim, Chiesi, Novartis, Roche, Genentech, Mologic and 4DPharma; and consultancy fees paid to their institution from GlaxoSmithKline, AstraZeneca, Sanofi, Boehringer Ingelheim, Chiesi, Novartis, Roche, Genentech, Mologic, 4DPharma and Areteia. C.E.Bo declares that their institute was awarded a grant from the UK Research and Innovation UKRI/NIHR and institutional support from NIHR Nottingham BRC to complete this work; the author reports grants from Nottingham University Hospitals (NUH) Charity, University of Nottingham charitable donation and NUH Research and Innovation Department. J.C.P. declares consultancy fees for Istesso and Tacit Fusion and speaker’s honorarium for The Limbic, outside the submitted work. P.P. declares grants from NIHR to the institute to support a study of digital remote rehabilitation after COVID-19. D.G.W. is supported by an NIHR Advanced Fellowship NIHR300669. S.H. declares receiving consultancy fees from Zealand Pharma and Zucara Pharma, research support from Dexcom Inc. and speaker fees from Medtronic and NovoNordisk, outside the submitted work. S.H. also declares chairing the DSMC for Eli Lilly. R.A. received lecture fees and sponsorship to attend conferences from Boehringer Ingelheim, outside the submitted work. R.A.E. reports grants from GlaxoSmithKline and Wolfson Foundation during the conduct of the study; travel and speaker fees from AstraZeneca, Boehringer Ingelheim and Chiesi, outside the submitted work. All other authors declare no competing interests.