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I am in the aerosol/air filtration camp myself. If anybody had caught it because some business didn't clorox down a doorknob or an elevator button or a credit card kiosk we would be seeing it. Meanwhile there's nothing to explain some of the superspreader events like that choir rehearsal except air transmission. I've started developing a list of professors who are researching this stuff and following their cue.
And that level of testing at MIT is what EVERYBODY ought to be getting. If we could make that universal we could more or less be open. The problem (OK, one problem) is that absent testing nobody knows if they're carrying it. I personally donated blood 10 days ago and, courtesy of the Red Cross, learned that my blood sample came back negative for the antibody test. But have I picked it up in the last 10 days? Who knows?
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