So I was wrong to call masks useless. Overall they were associated with a less than 2% decrease in case growth rate .
I should be saying that masks are 2% effective.
Or 98% useless.
I should be more precise when I speak.
https://www.cdc.gov/mmwr/v...
I should be saying that masks are 2% effective.
Or 98% useless.
I should be more precise when I speak.
https://www.cdc.gov/mmwr/v...
08:21 AM - Mar 25, 2021
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