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Rolla, ND | Yes John the big thing with simple masks is to limit covering everything with virus by controlling what comes out of our mouth and nose. It reduces the inoculum.
We aren’t sure how much protection it gives to the wearer by intercepting virus by breathing vs. virus from touching your hands to your nose, but something works there too.
It’s kind of stacking a bunch of imperfect aids on top of each other to reduce the overal spread of the virus.
Get enough and it stops.
Pretty much the same way multigenomic resistance to a herbicide works.
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