Independent report

REACT-1 study of coronavirus transmission: May 2021 final results

Results of real-time assessment of community transmission of coronavirus (COVID-19) during May 2021.

• From: Department of Health and Social Care
• Published: 17 June 2021
• Last updated: 7 July 2021 — See all updates

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REACT-1 study of coronavirus transmission: May 2021 final results

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REACT-1 is the largest population surveillance study being undertaken in England that examines the prevalence of the virus causing COVID-19 in the general population. It uses test results and feedback from over 150,000 participants each month.

The study focuses on national, regional and local areas, as well as:

• age
• sex
• ethnicity
• socio-economic factors
• employment type
• contact with known cases
• symptoms
• other factors

The findings will provide the government with a better understanding of the virus’s transmission and the risks associated with different population subgroups throughout England. This will inform government policies to protect health and save lives.

Published 17 June 2021
Last updated 7 July 2021 + show all updates

1. 7 July 2021

   Updated page to change June 2021 to May 2021.

2. 17 June 2021

   First published.