Effects of Wearing FFP2 Masks on SARS-CoV-2 Infection Rates in Classrooms.

ABSTRACT: In this retrospective cohort study involving 614 secondary school students, the likelihood of becoming infected with SARS-CoV-2 in schools with different focus (sports focus vs. general branch; the only difference in the sports focus school was that PE was allowed at all times without restrictions) and different prevailing restrictions were compared. A significantly higher likelihood of infection with SARS-CoV-2 was found in sports classes during the period with a strict FFP-2 mask requirement compared to general branch classes (for Delta from November 2021 to December 2021, and for Omicron from January 2022 to February 2022). The higher likelihood of infection was observed both during the Delta and the Omicron wave. After the relaxation of the mitigation measures, however, students in gen

SUBMITTER: Jarnig G 

PROVIDER: S-EPMC9603337 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature