School mask policies and SARS-CoV-2 seroprevalence among school-age children-United States, September to December 2021.

ABSTRACT: During September to December 2021, school mask policies to mitigate SARS-CoV-2 transmission varied throughout the US. We compared infection-induced seroprevalence estimates and estimated seroconversion among children residing in areas with and without school mask requirements. We estimated infection-induced seroprevalence among children in three age groups (5-17, 5-11, and 12-17 years) in areas with and without school district mask requirements for two time points: September 1-30, 2021 and December 15, 2021 to January 14, 2022. Robust Poisson regression models estimated population seroconversion over the semester among initially seronegative children. Permutation tests assessed for significant differences in the estimated population seroconversion due to incident infections by school distr

SUBMITTER: Nycz E 

PROVIDER: S-EPMC11449229 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature