Nature article giving some evidence for aerosol transmission. More specifically, what it gives evidence of is that in some circumstances you can find aerosolized SARS-CoV-2 where there are infected people, which doesn’t seem very surprising. It doesn’t say anything about how effectively that causes infection, or about the relative importance of this mode of transmission compared with others. It also has some discussion of the sizes of aerosol particles and how they got that way, and of what circumstances make it more likely for there to be non-negligible amounts of SARS-CoV-2 in the air.
The least obvious things there, to me: Toilets are pretty bad (lots of people, each there for a while, small space). In hospitals, one source of SARS-CoV-2 in the air (in smaller aerosol particles—do these stay around longer?) may be from PPE after it’s been taken off. In the public areas they looked at, only the most densely used ones had substantial amounts of SARS-CoV-2 in the air. [EDITED to add:] “Least obvious” does not mean “very not-obvious”; most of these are pretty unsurprising. I don’t know that I’d have guessed the thing about discarded PPE, though.
Nature article giving some evidence for aerosol transmission. More specifically, what it gives evidence of is that in some circumstances you can find aerosolized SARS-CoV-2 where there are infected people, which doesn’t seem very surprising. It doesn’t say anything about how effectively that causes infection, or about the relative importance of this mode of transmission compared with others. It also has some discussion of the sizes of aerosol particles and how they got that way, and of what circumstances make it more likely for there to be non-negligible amounts of SARS-CoV-2 in the air.
The least obvious things there, to me: Toilets are pretty bad (lots of people, each there for a while, small space). In hospitals, one source of SARS-CoV-2 in the air (in smaller aerosol particles—do these stay around longer?) may be from PPE after it’s been taken off. In the public areas they looked at, only the most densely used ones had substantial amounts of SARS-CoV-2 in the air. [EDITED to add:] “Least obvious” does not mean “very not-obvious”; most of these are pretty unsurprising. I don’t know that I’d have guessed the thing about discarded PPE, though.