We shouldn't be afraid to call SARS-CoV-2 "airborne." This is the clearest way to convey how it is transmitted. It's not waterborne, foodborne, bloodborne, or vector-borne. It's airborne. The word can still retain its special meaning in hospitals, like the word "chart." /1
https://twitter.com/linseymarr/status/1235640400054046724
A couple of updates to my 🧵from last year: I said there is no hard cutoff between droplets and aerosols. Well, there is a difference in how we are exposed: by large droplets being sprayed on us or by breathing in aerosols. /2
The associated size cut is in the range of 50-100 μm, depending on velocity of exhalation, local air flows, humidity, etc. The size cut is nowhere near the canonical 5 μm. /3
Last year, I also said "they will likely be quite diluted unless you're in a small confined space." It's now clear that aerosols can be a problem in any space with poor ventilation. /4
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