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  1. Jan 21, 2021 · This chart shows the percentage of U.S. adults saying they wear a mask when in public places.

  2. Jul 13, 2020 · Americans' reports of how often they wear a face mask when out in public. Forty-four percent of Americans say they always wear a mask when outside their homes, 28% say they do so very...

  3. 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.
  4. Nov 11, 2020 · In this multi-national sample of over 13 million adults from 38 countries, we found considerable heterogeneity in mask use across countries throughout the COVID-19 pandemic, and some cross-country differences were statistically significant even after adjusting for individual- and country-level factors, such as time-varying mask-wearing policy ...

    • 10.1186/s12889-021-12175-9
    • 2021
    • BMC Public Health. 2021; 21: 2099.
  5. National data from the New York Times’ COVID-19 cross-sectional mask survey was used to identify the percentage of a county’s residents who reported always/frequently wearing a mask (2–14 July 2020).

    • 10.22605/RRH6596
    • 2021/07
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  7. Jul 16, 2020 · Masks or cloth face coverings have the potential to help reduce the spread of COVID-19 without greatly disrupting economic activity if they are widely used. To assess the state of mask wearing, we surveyed US consumers about their recent and prospective mask-wearing behavior.

  8. Jun 6, 2023 · An increase of 100% of the proportion of people declaring wearing a mask (multiply by two) over the studied period lead to a reduction of around 12 and 13.5% of the number of Covid-19 infected...

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