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- Title
Prevalence of SARS-CoV-2 antibodies during phased access to vaccination: results from a population-based survey in New York City, September 2020–March 2021.
- Authors
Parrott, Jannae C.; Annibale, Ariana Maleki; Osahan, Sukhminder; Alroy, Karen; Caton, Jo-Anne; Chernov, Claudia; Dumas, Sarah; Fowler, Randal C.; Hermosi, Gabriella; Hsin, Yusyin; Perlman, Sharon; Wu, Jing; Hughes, Scott; Gould, L. Hannah; Schuster, Anne
- Abstract
Repeated serosurveys are an important tool for understanding trends in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and vaccination. During 1 September 2020–20 March 2021, the NYC Health Department conducted a population-based SARS-CoV-2 antibody prevalence survey of 2096 NYC adults who either provided a blood specimen or self-reported the results of a previous antibody test. The serosurvey, the second in a series of surveys conducted by the NYC Health Department, aimed to estimate SARS-CoV-2 antibody prevalence across the city and for different groups at higher risk for adverse health outcomes. Weighted citywide prevalence was 23.5% overall (95% confidence interval (CI) 20.1–27.4) and increased from 19.2% (95% CI 14.7–24.6) before coronavirus disease 2019 vaccines were available to 31.3% (95% CI 24.5–39.0) during the early phases of vaccine roll-out. We found no differences in antibody prevalence by age, race/ethnicity, borough, education, marital status, sex, health insurance coverage, self-reported general health or neighbourhood poverty. These results show an overall increase in population-level seropositivity in NYC following the introduction of SARS-CoV-2 vaccines and highlight the importance of repeated serosurveys in understanding the pandemic's progression.
- Publication
Epidemiology & Infection, 2022, Vol 150, p1
- ISSN
0950-2688
- Publication type
Article
- DOI
10.1017/S0950268822000875