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- W4385952011 abstract "We estimated the population prevalence of antibodies to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), including unreported infections, through a Seroprevalence Study of Monitoring of SARS-CoV-2 Antibody Retention and Transmission (K-SMART) in 258 communities throughout Korea.In August 2022, a survey was conducted among 10,000 household members aged 5 years and older, in households selected through two stage probability random sampling. During face-to-face household interviews, participants self-reported their health status, COVID-19 diagnosis and vaccination history, and general characteristics. Subsequently, participants visited a community health center or medical clinic for blood sampling. Blood samples were analyzed for the presence of anti-spike (anti-S) and anti-nucleocapsid (anti-N) SARS-CoV-2 proteins using an electrochemiluminescence immunoassay. To estimate the population prevalence, the PROC SURVEYMEANS statistical procedure was employed, with weighting to reflect demographic data from July 2022.In total, 9,945 individuals from 5,041 households were surveyed across 258 communities, representing all basic local governments in South Korea. The overall population-adjusted prevalence rates of anti-S and anti-N were 97.6% and 57.1%, respectively. Since the Korea Disease Control and Prevention Agency has reported a cumulative incidence of confirmed cases of 37.8% through July 31, 2022, the proportion of unreported infections among all COVID-19 infection was suggested to be 33.9%.The K-SMART represents the first nationwide, community-based seroepidemiologic survey of COVID-19, confirming that most individuals possess antibodies to SARS-CoV-2 and that a significant number of unreported cases existed. Furthermore, this study lays the foundation for a surveillance system to continuously monitor transmission at the community level and the response to COVID-19." @default.
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- W4385952011 date "2023-08-17" @default.
- W4385952011 modified "2023-10-17" @default.
- W4385952011 title "Korea Seroprevalence Study of Monitoring of SARS-COV-2 Antibody Retention and Transmission (K-Sero SMART): findings from national representative sample" @default.
- W4385952011 doi "https://doi.org/10.4178/epih.e2023075" @default.
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