Coronavirus antibody prevalence falling in England, REACT study shows (Imperial college and Ipsos MORI, 27th October) https://www.imperial.ac.uk/news/207333/coronavirus-antibody-prevalence-falling-england-react/ https://www.imperial.ac.uk/media/imperial-college/institute-of-global-health-innovation/MEDRXIV-2020-219725v1-Elliott.pdf N = 365,000 antibody tests Positive tests = 17,576 30% of whom did not report any COVID-19 symptoms 20 June and 28 September Three rounds Decline between rounds 1 and 3 in all age groups Decline was largest in people who didn’t report a history of COVID-19 Asymptomatics Dropped by 64.0% between rounds one and three Antigen diagnosed group Decrease of 22.3% between rounds one and three Overall decline Percentage testing positive, 6.0% to 4.8% and then 4.4% (a 26.5% reduction across...
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