“Actually, I think it’s a function of the concentration and length of time of the virons (or whatever they’re called...I’ll use virons).”
From what I have read you are correct. You can get some of the “virons” into your body and your body fights them and wins. You get too many (I think they call it viral loading) and the body is overwhelmed and the virus wins.
So anything one can do to lesson the amount of exposure is a good thing. (Hmm - I bet the UBER business is way down.)
Maybe not. What's safer, taking Uber or Mass transit?
“From what I have read you are correct. You can get some of the “virons” into your body and your body fights them and wins. You get too many (I think they call it viral loading) and the body is overwhelmed and the virus wins.”
That’s why having masks is important - even if you only catch 50% of the virons in the mask, you wind up, for example, doubling your allowable exposure time, for a given concentration.
There is also potential competition between viruses. Perhaps we need to find a beneficial virus that can outcompete Covid19.