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265 points ajaviaad | 2 comments | | HN request time: 0s | source
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chvid ◴[] No.22760237[source]
I thought here in the west that it was well-established that temperature checks and mask do not work against the corona?!
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amiga_500 ◴[] No.22760320[source]
I have a hard time believing that everyone wearing a mask when interacting doesn't inhibit a disease transmitted via vapor in our breath.
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btilly ◴[] No.22760484[source]
There is actually a debate about this.

A bad mask (eg a bandanna) means less virus gets out, but it is more likely to get out in the form of a fine aerosol that hangs in the air for hours. On the opposite end it is a reminder not to touch your face (prevents transmission from your hands) but won't stop you from breathing in an aerosol.

Likely still a net win, but kinda a hard thing to do good research on.

There is no doubt that masks that are designed to block things the size of viruses help. Just issues about who is the highest priority to get them when they are in short supply.

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1. xkapastel ◴[] No.22760549{3}[source]
Aerosol is not any more likely to get out than not wearing anything. And a bad mask prevents droplets from getting in as well.
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2. btilly ◴[] No.22761803[source]
I can't find the source on which I based my aerosol comment on, but the idea was that a large droplet which would have fallen gets trapped by the cloth. When it gets through, it comes out as a fine mist.

Given that I can't find it repeated, I suspect that it may be misinformation on my part.