"Our findings indicate that surgical masks can efficaciously reduce the emission of influenza virus particles into the environment in respiratory droplets, but not in aerosols"https://twitter.com/bencowling88/status/1246004236590010369 …
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Replying to @MackayIM
That's worrying. The primary rationale for mask wearing by the general public is aerosols, not larger droplets...
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Replying to @GidMK
Aerosols prevented by respirators, notsomcuh for surgical masks as I've always understood it
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Replying to @MackayIM
Yeh, me too. But aerosols are the airborne transmission risk that everyone's talking about - if masks don't prevent these being spread from asymptomatic people, then public wearing masks rationale disappears
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Replying to @GidMK
i'm not sure that distinction is always front of mind among the public
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Replying to @MackayIM
Nope, much easier to spruik making your own mask as a solution. Sigh
1 reply 0 retweets 4 likes
To be fair, on closer reading that paper mostly refers to people with symptoms anyway (i.e fever) so not really for the general public regardless
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