About the Authors

Terence Stephenson

Roles Conceptualization, Funding acquisition, Methodology, Writing – original draft

Affiliation UCL Great Ormond Street Institute of Child Health, London, United Kingdom

Snehal M. Pinto Pereira

Roles Data curation, Formal analysis, Writing – original draft

snehal.pereira@ucl.ac.uk

Affiliation Division of Surgery & Interventional Science, Faculty of Medical Sciences, University College London, United Kingdom

Manjula D. Nugawela

Roles Data curation, Formal analysis

Affiliation UCL Great Ormond Street Institute of Child Health, London, United Kingdom

Kelsey McOwat

Roles Data curation, Project administration, Resources, Writing – review & editing

Affiliation Immunisation Department, UK Health Security Agency, London, United Kingdom

Ruth Simmons

Roles Data curation, Writing – review & editing

Affiliation Immunisation Department, UK Health Security Agency, London, United Kingdom

Trudie Chalder

Roles Funding acquisition, Methodology, Writing – review & editing

Affiliation Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom

Tamsin Ford

Roles Funding acquisition, Methodology, Writing – review & editing

Affiliation Department of Psychiatry, University of Cambridge, Cambridge, United Kingdom

Isobel Heyman

Roles Funding acquisition, Methodology, Writing – review & editing

Affiliation UCL Great Ormond Street Institute of Child Health, London, United Kingdom

Olivia V. Swann

Roles Funding acquisition, Methodology, Writing – review & editing

Affiliation Centre for Medical Informatics, Usher Institute, University of Edinburgh, Edinburgh, United Kingdom

Lana Fox-Smith

Roles Writing – original draft, Writing – review & editing

Affiliation UCL Great Ormond Street Institute of Child Health, London, United Kingdom

Natalia K. Rojas

Roles Writing – original draft, Writing – review & editing

Affiliation UCL Great Ormond Street Institute of Child Health, London, United Kingdom

Emma Dalrymple

Roles Funding acquisition, Methodology, Writing – review & editing

Affiliation UCL Great Ormond Street Institute of Child Health, London, United Kingdom

Shamez N. Ladhani

Roles Methodology, Resources, Writing – review & editing

‡ SNL and RS are joint senior authors on this work.

Affiliations Immunisation Department, UK Health Security Agency, London, United Kingdom, Paediatric Infectious Diseases Research Group, St. George’s University of London, London, United Kingdom

Roz Shafran

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

‡ SNL and RS are joint senior authors on this work.

Affiliation UCL Great Ormond Street Institute of Child Health, London, United Kingdom

on behalf of the CLoCk Consortium

Membership of the CLoCk Consortium is provided in the Acknowledgments.

Competing Interests

Terence Stephenson is Chair of the Health Research Authority and therefore recused himself from the Research Ethics Application. Trudie Chalder is a member of the National Institute for Health and Care Excellence committee for long COVID. She has written self-help books on chronic fatigue and has done workshops on chronic fatigue and post infectious syndromes. All remaining authors have no conflicts of interest. This does not alter our adherence to PLOS ONE policies on sharing data and materials.