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  1. Jul 31, 2020 · The COVID-19 outbreak in China, which produces half of the world’s face masks, has generated a twofold challenge: there is surging domestic demand and a major disruption to the global supply. It is estimated that 89 million medical masks will be required every month and a 40% increase in manufacturing is expected to meet the global demand [ 3 ].

    • Dongxiao Ji, Li Fan, Xiaoxia Li, Seeram Ramakrishna
    • 2020
  2. Nov 15, 2021 · We assessed the prevalence and correlates of mask usage during the pandemic. Methods We examined a total of 13,723,810 responses to a daily cross-sectional online survey in 38 countries of people who completed from April 23, 2020 to October 31, 2020 and reported having been in public at least once during the last 7 days.

    • Elena Badillo-Goicoechea, Ting-Hsuan Chang, Esther Kim, Sarah LaRocca, Katherine Morris, Xiaoyi Deng...
    • 2021
  3. People also ask

    Does urbanicity matter for mask wearing?

    Does mandatory mask wearing reduce infection and death?

    How do hospitalizations compare between mask counties and no mask counties?

    Can data be used to forecast mask usage worldwide?

  4. Jun 16, 2021 · despite demonstrated biologic efficacy and official recommendations from the centers of disease control and prevention, 1–4 there has been wide variability in state-level policies for mask wearing while in public to reduce covid-19 transmission. 5, 6 a survey conducted by the delphi group suggested a strong state-level correlation between mask

  5. Nonpharmaceutical interventions such as mask wearing play a critical role in reducing disease prevalence. Under the dueling dynamics of mask wearing and disease, we observe a robust nonmonotonic relationship between the attack rate (i.e., the fraction of the ever-infected population) and the transmission probability of the disease.

  6. Jun 23, 2021 · References Figure. Seven-Day Moving Average of COVID-19 Cases, Hospitalizations, and Deaths per 100 000 Population in Mask and No Mask Counties in Kansas View LargeDownload Dashed lines in panel A represent associations confounded by the November mask mandate. Table.

    • Donna K Ginther, Donna K Ginther, Carlos Zambrana
    • 2021
  7. Clearly, this doesn’t prove that not wearing masks prevents transmission. Another CDC-highlighted study, by Rader et al., invited people across the country to answer a survey. The low (11 percent) response rate—including about twice as many women as men—indicated that the mix of respondents was hardly random.

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