Alliance for Pandemic Preparedness

October 28, 2020

Effects of New York’s Executive Order on Face Mask Use on COVID-19 Infections and Mortality A Modeling Study

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[Pre-print, not peer reviewed] According to estimates from a modeling study, the Executive Order issued by New York State mandating mask use reduced the number of COVID-19 infections by 99,517 (95% CIs: 72,723-126,312) and COVID-related deaths by 7,978 (5,692-10,265). If the Executive Order were implemented earlier, greater numbers of infections and deaths would have been averted (12% more reduction in infections and 13% in deaths if 1 week earlier; 29% in infections and 32% in deaths if 2 weeks earlier).

Shen et al. (Oct 27, 2020). Effects of New York’s Executive Order on Face Mask Use on COVID-19 Infections and Mortality A Modeling Study. Pre-print downloaded Oct 28 from https://doi.org/10.1101/2020.10.26.20219527