covid19 aerosol transmission 

"A room, a bar and a classroom: how the coronavirus is spread through the air.

Here is an overview of the likelihood of infection in three everyday scenarios, based on the safety measures used and the length of exposure":

english.elpais.com/society/202

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covid19 aerosol transmission 

@fribbledom hey this is a really good study, thanks for sharing!

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glitterkitten

sparkle sparkle, bitches