June 11, 2021

Seroprevalence of Anti-SARS-CoV-2 IgG Antibodies in the Staff of a Public School System in the Midwestern United States

Category: Article Summary

Topic: Public Health Policy and Practice

Keywords (Tags): public health, schools

• A cross-sectional seroprevalence survey of teachers and staff (N=753) at a school in suburban Indiana conducted in July 2020 found that 1.7% of tested persons had antibodies to SARS-CoV-2. Persons with a previously confirmed SARS-CoV-2 infection had 48-fold higher odds of seropositivity compared to persons without previous infection, controlling for mask usage, travel history, symptom history, and known contact with persons with confirmed infection. In persons without previous infection, exposure to a person with confirmed infection was associated with 7-fold higher odds of seropositivity.

Lopez et al. (2021). Seroprevalence of Anti-SARS-CoV-2 IgG Antibodies in the Staff of a Public School System in the Midwestern United States. PloS One. https://doi.org/10.1371/journal.pone.0243676