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As mask use illustrates, state policies rapidly and forcefully affect US regions and the United States overall. States that reopened too soon experienced surges in COVID-19 cases, which spread across state borders.
- Lawrence O Gostin, I Glenn Cohen, Jeffrey P Koplan
- 2020
Apr 14, 2021 · Mean COVID-19 rates for states with at least 75% mask adherence in the preceding month was 109.26 per 100,000 compared to 249.99 per 100,000 for those with less adherence. Our analysis suggests high adherence to mask wearing could be a key factor in reducing the spread of COVID-19.
- Charlie B. Fischer, Nedghie Adrien, Jeremiah J. Silguero, Julianne J. Hopper, Abir I. Chowdhury, Mar...
- 10.1371/journal.pone.0249891
- 2021
- PLoS One. 2021; 16(4): e0249891.
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May 7, 2021 · Only eight states reported that 75% or more people wore masks between June and September, leading to fewer COVID cases: States with a 75% minimum mask adherence reported about 109.26 COVID-19 cases per 100,000 residents compared to the average of 249.99 per 100,000 residents in states with low mask adherence.
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Apr 14, 2021 · Mean COVID-19 rates for states with at least 75% mask adherence in the preceding month was 109.26 per 100,000 compared to 249.99 per 100,000 for those with less adherence. Our analysis suggests high adherence to mask wearing could be a key factor in reducing the spread of COVID-19.
- Charlie B. Fischer, Nedghie Adrien, Jeremiah J. Silguero, Julianne J. Hopper, Abir I. Chowdhury, Mar...
- 2021
Apr 14, 2021 · The eight states with at least 75-percent adherence to mask wearing had a mean COVID-19 rate of 109.26 per 100,000 residents in the subsequent month, while the mean COVID-19 rate was 239.99 for...
The median daily COVID-19 case rate between 15 June and 1 July 2020 was 243 per 100 000. The five counties with the highest percentages of mask wearing were in California, Virginia, and Florida (average IRR score = 0.42; Table 2 ). The average IRR score for the bottom five counties was 0.55, or more rural.