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Epidemiological impacts of the NHS COVID-19 app in England and Wales throughout its first year
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Kendall, Michelle, Tsallis, Daphne, Wymant, Chris, Di Francia, Andrea, Balogun, Yakubu, Didelot, Xavier, Ferretti, Luca and Fraser, Christophe (2023) Epidemiological impacts of the NHS COVID-19 app in England and Wales throughout its first year. Nature Communications, 14 (1). 858. doi:10.1038/s41467-023-36495-z ISSN 2041-1723.
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Official URL: https://doi.org/10.1038/s41467-023-36495-z
Abstract
The NHS COVID-19 app was launched in England and Wales in September 2020, with a Bluetooth-based contact tracing functionality designed to reduce transmission of SARS-CoV-2. We show that user engagement and the app’s epidemiological impacts varied according to changing social and epidemic characteristics throughout the app’s first year. We describe the interaction and complementarity of manual and digital contact tracing approaches. Results of our statistical analyses of anonymised, aggregated app data include that app users who were recently notified were more likely to test positive than app users who were not recently notified, by a factor that varied considerably over time. We estimate that the app’s contact tracing function alone averted about 1 million cases (sensitivity analysis 450,000–1,400,000) during its first year, corresponding to 44,000 hospital cases (SA 20,000–60,000) and 9,600 deaths (SA 4600–13,000).
Item Type: | Journal Article | ||||||||||||
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Subjects: | R Medicine > RA Public aspects of medicine | ||||||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- ) | ||||||||||||
SWORD Depositor: | Library Publications Router | ||||||||||||
Library of Congress Subject Headings (LCSH): | COVID-19 (Disease) , COVID-19 (Disease) -- Epidemiology -- Data processing, Contact tracing (Epidemiology) , Contact tracing (Epidemiology) -- Technological innovations , COVID-19 (Disease) -- Prevention -- Technological innovations | ||||||||||||
Journal or Publication Title: | Nature Communications | ||||||||||||
Publisher: | Nature Publishing Group UK | ||||||||||||
ISSN: | 2041-1723 | ||||||||||||
Official Date: | 22 February 2023 | ||||||||||||
Dates: |
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Volume: | 14 | ||||||||||||
Number: | 1 | ||||||||||||
Article Number: | 858 | ||||||||||||
DOI: | 10.1038/s41467-023-36495-z | ||||||||||||
Status: | Peer Reviewed | ||||||||||||
Publication Status: | Published | ||||||||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||||||||
Date of first compliant deposit: | 28 February 2023 | ||||||||||||
Date of first compliant Open Access: | 1 March 2023 | ||||||||||||
RIOXX Funder/Project Grant: |
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