That's a good question, no doubt. A related one I had was (and maybe I missed this), but what's the "dose" of virus one needs to get infected? In the discussion

That's a good question, no doubt. A related one I had was (and maybe I missed this), but what's the "dose" of virus one needs to get infected? In the discussion of decay / half life of the virus on surfaces and in the air, I wondered about this. It's one thing if the virus can hang around for three hours and infect you at any time, and another thing if it's in the air for three hours but decays at ____ rate and can only infect for 1 hour.