Birdwatch Note Rating
2023-05-01 02:25:38 UTC - HELPFUL
Rated by Participant: C378931E048482D2BFDF00DC95644D6377CBCB812C79FF87D77B5E48595B3DA3
Participant Details
Original Note:
Cochrane mask meta-study is a study of mask effectiveness - & they failed to find effectiveness. https://ncbi.nlm.nih.gov/pmc/articles/PMC3912314/#:~:text=Efficacy%20can%20be%20defined%20as,'realworld'%20conditions “But this doesn’t show that masks don’t work on an individual level.” It is not the job of studies to prove a negative. You must affirmatively prove efficacy.
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