More mask stuff - Printable Version

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More mask stuff - OutsiderFan - 06-10-2020

https://www.reuters.com/article/us-health-coronavirus-masks-study-idUSKBN23G37V

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RE: More mask stuff - BostonCard - 06-10-2020

Here's the paper:

https://royalsocietypublishing.org/doi/10.1098/rspa.2020.0376

Quote:To implement control by wearing facemasks, we assumed that a proportion of the population (p) is wearing a mask. On a day when an individual wears a facemask, the relative infectiousness is reduced by (1 − γ), where γ is the effectiveness of a facemask in reducing transmissibility. We explore two scenarios: wearing a facemask after the onset of symptoms and wearing a facemask all the time.

Note that they assume γ (they provide a number of different possible values from 25% to 95%.  I mean, that's fair because estimates on the effectiveness of masks is about 50 - 75%, but still the article is a bit of a truism.  If masks work to decrease infections, there will be fewer infections.

BC

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