REACT-2: real-time assessment of community transmission – antibody waning

From June to Sept 20, SARS-CoV-2 antibodies were measured in the community in three rounds in England at an overall adjusted prevalence ranging from 6.0% in round 1 to 4.4% in round 3. Reduction of people testing positive suggests antibody waning at the population level.

SPS commentary:

REACT-2 is a world largest surveillance study undertaken in England that examines the prevalence of antibodies in the community. The study focusses on finger prick self-testing at home by individuals aged 18 or over. In this publication 3 rounds of test results and feedback were compared to identify potential antibody waning.

Department of Health and Social Care