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Convalescent plasma treatment for SARS-CoV-2 infection: analysis of the first 436 donors in England, 22 April to 12 May 2020
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View Affiliations Hide AffiliationsHeli Harvalaheli.harvalasimmonds nhsbt.nhs.uk
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NHS Blood and Transplant Convalescent Plasma Testing Group: Stephen Thomas, Sheila MacLennan, Lise Estcourt, Su Brailsford, Hatice Baklan, Kate Tettmar, Jeremy Kellington, Joanne Sell, Gail MiflinView Citation Hide Citation
Citation style for this article: . Convalescent plasma treatment for SARS-CoV-2 infection: analysis of the first 436 donors in England, 22 April to 12 May 2020. Euro Surveill. 2020;25(28):pii=2001260. https://doi.org/10.2807/1560-7917.ES.2020.25.28.2001260 Received: 22 Jun 2020; Accepted: 16 Jul 2020
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Abstract
Serological reactivity was analysed in plasma from 436 individuals with a history of disease compatible with COVID-19, including 256 who had been laboratory-confirmed with SARS-CoV-2 infection. Over 99% of laboratory-confirmed cases developed a measurable antibody response (254/256) and 88% harboured neutralising antibodies (226/256). Antibody levels declined over 3 months following diagnosis, emphasising the importance of the timing of convalescent plasma collections. Binding antibody measurements can inform selection of convalescent plasma donors with high neutralising antibody levels.
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