15 Matching Annotations
  1. Apr 2022
    1. a well-fitting mask or respirator over their nose and mouth

      Most people I see wearing masks don't have a good seal, many have beards or facial hair affecting the seal, often they have their nose sticking out over the top - or chin mask.

      And masking children properly is an exercise in futility.

      Long story short, when worn properly they offer "some" protection studies also found that modest improvements in ventilation offered as much protection as even the best masks.

  2. Mar 2022
  3. Feb 2022
  4. Jan 2022
  5. Dec 2021
  6. Oct 2021
  7. Sep 2021
    1. David Dowdy on Twitter: “@NEJM joining the waning immunity debate. I’m going to push back a bit. Data from @UCSDHealth of vax effectiveness in health workers: 94% in June, 65% in July. Interpreted as ‘likely to be due to...delta and waning immunity over time, compounded by end of masking requirements.’ https://t.co/flDOfBbTs7” / Twitter. (n.d.). Retrieved September 2, 2021, from https://twitter.com/davidwdowdy/status/1433254675915157504?s=20

  8. Aug 2021
  9. Jun 2021