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WHO Recommends Masks on Long Flights as COVID Variant Spreads — Get The Best Face Masks for Planes | Entertainment Tonight
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Effectiveness of Face Mask or Respirator Use in Indoor Public Settings for Prevention of SARS-CoV-2 Infection — California, February–December 2021 | MMWR
![LA Public Health on Twitter: "Increase your protection against COVID-19 by upgrading your mask to a KN95, N95 or KF94, especially if around a lot of people. Community transmission is high due LA Public Health on Twitter: "Increase your protection against COVID-19 by upgrading your mask to a KN95, N95 or KF94, especially if around a lot of people. Community transmission is high due](https://pbs.twimg.com/media/FISd-EGWYAMxiZB.jpg)