Seroprevalence of SARS-CoV-2 among Blood Donors and Changes after Introduction of Public Health and Social Measures, London, UK
, Heather Whitaker, Tim Brooks, Kevin Brown, Katja Hoschler, Ezra Linley, Ray Borrow, Colin Brown, Nick Watkins, David J. Roberts, Danielle Solomon, Charlotte M. Gower, Olivier le Polain de Waroux, Nick J. Andrews, and Mary E. Ramsay
Author affiliations: Public Heath England, London, UK (G. Amirthalingam, H. Whitaker, K. Brown, K. Hoschler, C. Brown, D. Solomon, C.M. Gower, O. le Polain de Waroux, N.J. Andrews, M.E. Ramsay); Public Health England, Porton Down, UK (T. Brooks); Public Health England, Manchester, UK (R. Borrow); National Health Service Blood and Transplant, Cambridge, UK (N. Watkins); National Health Service Blood and Transplant, Oxford, UK (D.J. Roberts); Radcliffe Department of Medicine, University of Oxford, Oxford (D.J. Roberts)
Figure 1. Percentage of reactive test results (unadjusted) for severe acute respiratory syndrome coronavirus 2 Ig in serum samples, by assay and epidemiologic week of sample collection (weeks 13, 15–16, and 18), London, UK, 2020. Error bars indicate 95% CIs. RBD, receptor-binding domain.
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