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Re:YouTube is banning anti-vaccine activists and blocking al... by mywittyname on Wednesday September 29, 2021 @05:07PM (#28699967)
Early on, they didn't know if masks were effective against covid, because of the size of the particles. But they did still recommend them for healthcare workers:

https://www.news-medical.net/news/20200130/Do-masks-protect-...

They were saying not to buy masks in order to preserve them for healthcare workers. There was already a severe shortage of them.

https://news.yahoo.com/cdc-warns-save-respirator-masks-for-h...

Re:YouTube is banning anti-vaccine activists and blocking al... by michaelcampbell on Thursday September 30, 2021 @07:13AM (#28705048)
Neither of which was "don't work".
Re:YouTube is banning anti-vaccine activists and blocking al... by mywittyname on Thursday September 30, 2021 @04:13PM (#28710782)
Oh, agreed. I was just providing links to stories from the time and letting the reader decide if they are being accurately recounted.