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Serosurvey
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Serosurvey in Sierra Leone points to underreporting of cases, risk of new variants
Transmission electron micrograph of SARS-CoV-2 virus particles isolated from a patient. Credit: NIAID A COVID-19 antibody survey conducted in Sierra Leone is the first nationally representative investigation of COVID-19 seroprevalence conducted on the African continent and presents evidence of large-scale underreporting of cases and low vaccination rates. Results of the study, based on data collected…