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  2. Face masks during the COVID-19 pandemic in the United States

    en.wikipedia.org/wiki/Face_masks_during_the...

    A public service announcement from the Government of California encouraging people to wear masks to "slow the spread". In late March 2020, some government officials began to focus on the wearing of masks to help prevent transmission of COVID-19 as opposed to protecting the wearer; former FDA Commissioner Scott Gottlieb stated in a report that face masks would be "most effective" at slowing its ...

  3. Face masks during the COVID-19 pandemic - Wikipedia

    en.wikipedia.org/wiki/Face_masks_during_the...

    During the COVID-19 pandemic, face masks or coverings, including N95, FFP2, surgical, and cloth masks, have been employed as public and personal health control measures against the spread of SARS-CoV-2, the virus that causes COVID-19. In community and healthcare settings, the use of face masks is intended as source control to limit transmission ...

  4. Executive Order 13991 - Wikipedia

    en.wikipedia.org/wiki/Executive_order_13991

    Executive Order 13991, officially titled Protecting the Federal Workforce and Requiring Mask-Wearing (and also referred to as the 100 Day Masking Challenge), is an executive order signed by U.S. President Joe Biden on January 20, 2021. [1] The order commands federal agencies and properties to require that mitigations to help reduce the spread ...

  5. N95 respirator - Wikipedia

    en.wikipedia.org/wiki/N95_respirator

    An N95 respirator is a disposable filtering facepiece respirator or reusable elastomeric respirator filter that meets the U.S. National Institute for Occupational Safety and Health (NIOSH) N95 standard of air filtration, filtering at least 95% of airborne particles that have a mass median aerodynamic diameter of 0.3 micrometers under 42 CFR 84, effective July 10, 1995.

  6. U.S. federal government response to the COVID-19 pandemic

    en.wikipedia.org/wiki/U.S._federal_government...

    [152] On April 5, Anthony Fauci said that as many as 50% of coronavirus carriers may be asymptomatic. [153] In late April, Trump's adviser and son-in-law, Jared Kushner , declared that in response to the pandemic "the federal government rose to the challenge, and this is a great success story."

  7. Texas becomes biggest US state to lift COVID-19 mask mandate

    www.aol.com/news/texas-becomes-biggest-us-state...

    March 2, 2021 at 12:32 PM. Texas becomes biggest US state to lift COVID-19 mask mandate. AUSTIN, Texas (AP) — Texas is lifting its mask mandate, Gov. Greg Abbott said Tuesday, making it the ...

  8. SARS-CoV-2 - Wikipedia

    en.wikipedia.org/wiki/SARS-CoV-2

    t. e. Severe acute respiratory syndrome coronavirus 2 (SARS‑CoV‑2) [2] is a strain of coronavirus that causes COVID-19, the respiratory illness responsible for the COVID-19 pandemic. [3] The virus previously had the provisional name 2019 novel coronavirus (2019-nCoV), [4][5][6][7] and has also been called human coronavirus 2019 (HCoV-19 or ...

  9. COVID-19 pandemic - Wikipedia

    en.wikipedia.org/wiki/COVID-19_pandemic

    Initial estimates of the basic reproduction number (R 0) for COVID-19 in January 2020 were between 1.4 and 2.5, [58] but a subsequent analysis claimed that it may be about 5.7 (with a 95 percent confidence interval of 3.8 to 8.9). [59] In December 2021, the number of cases continued to climb due to several factors, including new COVID-19 variants.

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