Serological surveys to estimate cumulative incidence of SARS-CoV-2 infection in adults (Sero-MAss study), Massachusetts, July-August 2020: a mail-based cross-sectional study.

ABSTRACT:

Objectives

To estimate the seroprevalence of anti-SARS-CoV-2 IgG and IgM among Massachusetts residents and to better understand asymptomatic SARS-CoV-2 transmission during the summer of 2020.

Design

Mail-based cross-sectional survey.

Setting

Massachusetts, USA.

Participants

Primary sampling group: sample of undergraduate students at the University of Massachusetts, Amherst (n=548) and a member of their household (n=231).Secondary sampling group: sample of graduate students, faculty, librarians and staff (n=214) and one member of their household (n=78). All participants were residents of Massachusetts without prior COVID-19 diagnosis.

Primary and secondary outcome measures

Prevalence of SARS-CoV-2 seropositivity. Association of seroprevalence with variabl

SUBMITTER: Snyder T 

PROVIDER: S-EPMC8375452 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature