JMIR Public Health Surveillpublichealth9JMIR Public Health and SurveillanceJMIR Public Health Surveill2369-2960JMIR PublicationsToronto, Canadav11i1e8551210.2196/85512Corrigenda and AddendaCorrection: Comparison of Virus Watch COVID-19 Positivity, Incidence, and Hospitalization Rates With Other Surveillance Systems: Surveillance StudyFongWing Lam EricaMSc1NguyenVincent GrigoriPhD123BealeSarahPhD1ByrneThomas EPhD1GeismarCyrilPhD4FragaszyEllenPhD15KovarJanaPhD1YavlinskyAlexeiPhD1AbubakarIbrahimPhD6HaywardAndrew CMD27AldridgeRobert WPhD18Institute of Health Informatics, University College London222 Euston RoadLondonUnited KingdomInstitute of Epidemiology and Health Care, University College LondonLondonUnited KingdomDepartment of Population, Policy and Practice, UCL Great Ormond Street Institute of Child HealthLondonUnited KingdomNIHR Health Protection Research Unit in Modelling and Health Economics, Department of Infectious Disease Epidemiology, School of Public Health, Imperial College LondonLondonUnited KingdomDepartment of Infectious Disease Epidemiology, London School of Hygiene & Tropical MedicineLondonUnited KingdomFaculty of Population Health Sciences, University College LondonLondonUnited KingdomNIHR Health Protection Research Unit in Health Analytics and Modelling, Department of Infectious Disease Epidemiology, School of Public Health, Imperial College LondonLondonUnited KingdomInstitute for Health Metrics and Evaluation, University of WashingtonSeattleUnited StatesCorrespondence to Wing Lam Erica Fong, MSc, Institute of Health Informatics, University College London, 222 Euston Road, London, NW1 2DA, United Kingdom, 44 02035495969; erica.fong.16@ucl.ac.uk20251010202511e855120810202508102025© Wing Lam Erica Fong, Vincent Grigori Nguyen, Sarah Beale, Thomas E Byrne, Cyril Geismar, Ellen Fragaszy, Jana Kovar, Alexei Yavlinsky, Ibrahim Abubakar, Andrew C Hayward, Robert W Aldridge. Originally published in JMIR Public Health and Surveillance (https://publichealth.jmir.org), 10.10.2025. 2025

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https://publichealth.jmir.org/2025/1/e69655

In “Comparison of Virus Watch COVID-19 Positivity, Incidence, and Hospitalization Rates With Other Surveillance Systems: Surveillance Study” [1], the authors noted one error.

Coauthor ACH was mistakenly linked to the fourth affiliation, which has now been removed from the author. The following affiliation was added:

NIHR Health Protection Research Unit in Health Analytics and Modelling, Department of Infectious Disease Epidemiology, School of Public Health, Imperial College London, London, United Kingdom

This will appear as the seventh affiliation and be attached to ACH, with any subsequent affiliations being renumbered accordingly.

The correction will appear in the online version of the paper on the JMIR Publications website, together with the publication of this correction notice. Because this was made after submission to PubMed, PubMed Central, and other full-text repositories, the corrected article has also been resubmitted to those repositories.

ReferencesFongWLE NguyenVG BealeS Comparison of virus watch COVID-19 positivity, incidence, and hospitalization rates with other surveillance systems: surveillance studyJMIR Public Health Surveill2025092911e6965510.2196/6965541021969