I've been wondering what counts as touching your face for purposes of virus transmission. In the paper they highlight people whose fingers are under or in their noses but I wonder if something like grazing your cheek or forehead would count. Is there some mechanism the virus would use to migrate from the forehead/cheek into the eyes/nose or is the "don't touch your face" advice really shorthand for "don't pick your n…
i'm not a doctor/virologist/biologist/whatever, but one could imagine someones' perspiring face may aerosolize whatever was on its' surface due to the evaporative cooling effect.
I don't know whether or not that's practically feasible.