The Effectiveness of Face Mask Mandates on COVID-19 Transmission in Utah.

Objective: Throughout the COVID-19 pandemic, the effectiveness of face mask mandates was intensely debated. The objective of this study was to describe how face mask mandates at the state, county, and local levels differed in their effectiveness in reducing the number of COVID-19 cases in the jurisdiction where the mandate was implemented and throughout Utah.

Methods: We used publicly available data from the Utah Department of Health and Human Services.