Interesting. I'd read a long time ago that hospitals in the 40's 50's introduced PG into the HVAC systems. But he says they still do it. Wonder if that's even true.
Post asks if vaping helps with symptoms, but video poses the question of whether it reduces chance of infection. Of course, we don't know either now. As everyone is pointing out, bacteria an virus are two different things. But hey, if it creates a harsh environment for one, it's possible it could affect the other, I guess.
It'd be funny if CDC found that a combination of PG & VG dramatically reduced Covid 19 reproduction, and had to recommend vaping though, wouldn't it. Wonder if they'd make a distinction between ecig & thc then?