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

During the period 6-22 January 2021, the prevalence of Covid-19 infection was 157 people in 10,000 infected - the highest recorded by REACT-1 since it started in May 2020, with an estimated R of 0.98 (95% CI 0.92-1.04). Prevalence is highest in London and in 18-24 year olds.

Department of Health and Social Care