Needed some time to digest new paper on masks and coronavirus (seasonal ones, not SARS-CoV-2), flu, rhinovirus. Main points: 1) 4/10 patients shed coronavirus directly into aerosols (<5 microns) 2) 3/10 shed virus into larger ones (>5 microns) ...

3) There was more absolute amount of coronavirus in fine aerosols (<5 microns) than in coarse aerosols (>5 microns), even though coarse ones are larger ...

4) Surgical masks on the patients blocked coronavirus in both fine and coarse aerosols from being released into air, but this does not imply surgical masks protect the wearer from inhalation of virus ...

5) Can't figure out why masks blocked coronavirus fine aerosols but not flu fine aerosols 6) They measured RNA and did not try to culture coronavirus samples