Do face masks work and should you wear one?
@UNSWMedicine's Prof Raina MacIntyre suggests there may be a small benefit to wearing some kind of face covering but "we still don’t effectively know if face masks in the community work.” #COVID19au https://www.newscientist.com/article/2240288-do-face-masks-work-against-the-coronavirus-and-should-you-wear-one/ …pic.twitter.com/wzh0mzTOiS
7:50 PM - 14 Apr 2020
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