![Public Health Reports](https://aspph-redesign-wp-production.s3.amazonaws.com/wp-content/uploads/2022/08/big-PHR-1-e1660856793729.png)
Using appropriate face coverings in public spaces can help mitigate the transmission of COVID-19. A new research study in Public Health Reports evaluates compliance with a statewide mask mandate by examining trends in face-covering use in King County, Washington from November 2020 through May 2021.