November 20, 2020

Trends in County-Level COVID-19 Incidence in Counties With and Without a Mask Mandate — Kansas, June 1–August 23, 2020

Category: Article Summary

Topic: Non-Pharmaceutical Interventions

Keywords (Tags): masks

• After implementation of mask mandates in 24 Kansas counties, the increasing trend in COVID-19 incidence reversed. Although rates were considerably higher in mandated counties than in non-mandated counties, rates in mandated counties declined markedly after July 3, compared with those in non-mandated counties. Kansas counties that had mask mandates in place appear to have mitigated the transmission of COVID-19, whereas counties that did not have mask mandates continued to experience increases in cases.

Van Dyke et al. (Nov 20, 2020). Trends in County-Level COVID-19 Incidence in Counties With and Without a Mask Mandate — Kansas, June 1–August 23, 2020. MMWR. https://doi.org/10.15585/mmwr.mm6947e2