About the Authors

David M. Lowe

Contributed equally to this work with: David M. Lowe, Li-An K. Brown

Roles Conceptualization, Funding acquisition, Investigation, Methodology, Writing – original draft, Writing – review & editing

d.lowe@ucl.ac.uk

Affiliations Institute of Immunity and Transplantation, University College London, London, United Kingdom, Department of Clinical Immunology, Royal Free London NHS Foundation Trust, London, United Kingdom

Li-An K. Brown

Contributed equally to this work with: David M. Lowe, Li-An K. Brown

Roles Investigation, Project administration, Writing – review & editing

Affiliation Institute of Immunity and Transplantation, University College London, London, United Kingdom

Kashfia Chowdhury

Roles Formal analysis, Writing – review & editing

Affiliation Comprehensive Clinical Trials Unit, University College London, London, United Kingdom

Stephanie Davey

Roles Investigation, Writing – review & editing

Affiliation Department of Rheumatology, Royal Free London NHS Foundation Trust, London, United Kingdom

Philip Yee

Roles Investigation, Writing – review & editing

Affiliation Department of Rheumatology, Royal Free London NHS Foundation Trust, London, United Kingdom

Felicia Ikeji

Roles Project administration, Writing – review & editing

Affiliation Comprehensive Clinical Trials Unit, University College London, London, United Kingdom

Amalia Ndoutoumou

Roles Project administration, Writing – review & editing

Affiliation Comprehensive Clinical Trials Unit, University College London, London, United Kingdom

Divya Shah

Roles Investigation, Writing – review & editing

Affiliation Department of Virology, Great Ormond Street Hospital NHS Foundation Trust, London, United Kingdom

Alexander Lennon

Roles Investigation, Writing – review & editing

Affiliation Department of Virology, Great Ormond Street Hospital NHS Foundation Trust, London, United Kingdom

Abhulya Rai

Roles Investigation, Writing – review & editing

Affiliation Department of Virology, Great Ormond Street Hospital NHS Foundation Trust, London, United Kingdom

Akosua A. Agyeman

Roles Formal analysis, Writing – review & editing

Affiliation Infection, Immunity and Inflammation Research and Teaching Department, Institute of Child Health, University College London, London, United Kingdom

Anna Checkley

Roles Investigation, Writing – review & editing

Affiliation University College London Hospitals NHS Foundation Trust, London, United Kingdom

Nicola Longley

Roles Investigation, Writing – review & editing

Affiliation University College London Hospitals NHS Foundation Trust, London, United Kingdom

Hakim-Moulay Dehbi

Roles Conceptualization, Formal analysis, Methodology, Writing – review & editing

Affiliation Comprehensive Clinical Trials Unit, University College London, London, United Kingdom

Nick Freemantle

Roles Conceptualization, Formal analysis, Funding acquisition, Methodology, Writing – review & editing

Affiliation Comprehensive Clinical Trials Unit, University College London, London, United Kingdom

Judith Breuer

Roles Conceptualization, Funding acquisition, Methodology, Writing – review & editing

‡ JB and JFS also contributed equally to this work.

Affiliations Department of Virology, Great Ormond Street Hospital NHS Foundation Trust, London, United Kingdom, Infection, Immunity and Inflammation Research and Teaching Department, Institute of Child Health, University College London, London, United Kingdom

Joseph F. Standing

Roles Conceptualization, Formal analysis, Funding acquisition, Methodology, Writing – original draft, Writing – review & editing

‡ JB and JFS also contributed equally to this work.

Affiliations Infection, Immunity and Inflammation Research and Teaching Department, Institute of Child Health, University College London, London, United Kingdom, Department of Pharmacy, Great Ormond Street Hospital NHS Foundation Trust, London, United Kingdom

FLARE Investigators

Membership of FLARE Investigators is provided in S1 Appendix.

Competing Interests

I have read the journal’s policy and the authors of this manuscript have the following competing interests: DML has received personal fees from Gilead for an educational video on COVID-19 in immunodeficiency and from Merck for a roundtable discussion on risk of COVID-19 in immunosuppressed patients. DML also holds research grants from Blood Cancer UK, Bristol Myers Squibb and the British Society for Antimicrobial Chemotherapy, all outside the current work. NF has received funding from Gedeon Richter, Abbott Singapore, Galderma, ALK, AstraZeneca, Ipsen, Vertex, Novo Nordisk, Aimmune, Allergan and Novartis, all outside the current work. JB holds research funding from GSK, Wellcome Trust, UKRI, Rosetrees Foundation and the John Black Foundation, all outside the current work. All other authors declare no conflict of interest.