We recently heard from the REACT-1 scientists with interim results from round 9 of their study looking at virus prevalence across England. They now have the full set of data in for this round.
This batch of data includes over 163,500 swab tests carried out across England between 4 and 23 February 2021. The study gives an estimate of prevalence of COVID-19 and of R, and has data on different demographic groups and regions of England. Please note this data is a preprint, so it is early work that has not yet been through peer-review and is not published in a journal.
Prof Paul Elliott, FMedSci, Director of the REACT programme, and Chair in Epidemiology and Public Health Medicine, Imperial College London
Prof Steven Riley, Professor of Infectious Disease Dynamics, Imperial College London
This Briefing was accompanied by an SMC Roundup of Comments.