I recall on one of these threads where a freeper made a color chart of all sorts of disinfectants, the amount of time needed, and the “decrease in infectivity”. And that that decrease met certain guidelines.
So I’m guessing that means that if you can reduce the load by “this much” that is good enough - and allows for some amount of virons to remain?
There was also the thread (yesterday?) that talked about higher loads received may correlate to more severe symptoms.
You may have seen a post of mine.
The fact that size of inoculumm makes a difference has long been known for some disease. That was what the unethical experiments the Japanese did on our POWs was all about. How much Salmonella could you inject without producing disease. War Crime. So you can imagine this kind research is controversial.
See 61 and link.