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The understanding of effectiveness did not change, what changed is that enough masks were being produced that the supply of medical masks did not need to protec
by ravar 6y ago
The understanding of effectiveness did not change, what changed is that enough masks were being produced that the supply of medical masks did not need to protected any more. We were lied to at the start.
https://thehill.com/changing-america/well-being/prevention-cures/502890-fauci-why-the-public-wasnt-told-to-wear-masks https://thehill.com/changing-america/well-being/prevention-c...
- ceejayoz 6y agoIt's a bit of both. If you go through the literature, there's genuinely very little concrete useful stuff on mask efficacy pre-COVID. "We're not sure" was a pretty reasonable statement back in March. "Masks don't work" like the US Surgeon General was tweeting at the time wasn't a very supportable statement, though. (The lie didn't work, either, and likely harmed trust in public officials on the matter.)