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Estimates of prevalence of anti-SARS-CoV-2 antibodies among blood donors in eight provinces of South Africa in November 2021

Article scientifique 2022 Anglais

Résumé

In line with previous instalments of analysis from this ongoing study to monitor 'Covid Seroprevalence' among blood donors in South Africa, we report on analysis of 3395 samples obtained from 8 to 12 November 2021 in all provinces of South Africa except the Western Cape. As in our previous analyses, we see no evidence of age and sex dependence of prevalence, but substantial variation by province, and by race within each province, from which we generated provincial total point estimates (EC-74%; FS-75%; GP-68%; ZN-73%; LP-66; MP-73%; NC-63%; NW-81% ) and a 'South Africa minus Western Cape' national prevalence estimate of 71% (95%CI 69-74%). We note that sample collection occurred just before the omicron variant driven wave in South Africa, but otherwise present these results without significant interpretation.

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Cable, R., Coleman, C., Glatt, T., Grebe, E., Mhlanga, L., Nyano, C., Pieterson, N., Swanevelder, R., Swarts, A., Sykes, W., Berg, K., Vermeulen, M., Welte, A. (2022). Estimates of prevalence of anti-SARS-CoV-2 antibodies among blood donors in eight provinces of South Africa in November 2021. https://doi.org/10.21203/rs.3.rs-1359658/v1

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Auteur(s)

Russel Cable Charl Coleman Tanya Nadia Glatt Eduard Grebe Laurette Mhlanga Cynthia Nyano Nadia Pieterson Ronél Swanevelder Avril Swarts Wendy Sykes Karin van den Berg Marion Vermeulen Alex Welte

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