February 5, 2021

Decline in COVID-19 Hospitalization Growth Rates Associated with Statewide Mask Mandates — 10 States, March–October 2020

Category: Article Summary

Topic: Non-Pharmaceutical Interventions

Keywords (Tags): masks

Hospitals in states with statewide mask mandates reported a decline in weekly COVID-19–associated hospitalization growth rates by up to 5.5 percentage points for adults aged 18–64 years after mandate implementation, compared with growth rates during the 4 weeks preceding implementation of the mandate. Data were collected during March 22–October 17, 2020 in 10 sites participating in the COVID-19–Associated Hospitalization Surveillance Network.

Joo et al. (Feb 5, 2021). Decline in COVID-19 Hospitalization Growth Rates Associated with Statewide Mask Mandates — 10 States, March–October 2020. MMWR. https://doi.org/10.15585/mmwr.mm7006e2