This might be a stupid question, but I feel unable to assess that, so I've decided to ask anyway.
- RNA Viruses mutate always, all the time.
- Mutations with milder symptoms are likely to spread faster because affected person are less likely to isolate themselves.
- Mutations with severe symptoms are likely to spread slower because affected persons are isolating more often and other humans in proximity are more careful. (With the limited exception of mutations that are just reproducing faster)
- Mutations that spread faster supplant mutations that spread slower.
- Natural human behavior makes a virus mutate towards less severity. Because milder symptoms get rewarded and more severe symptoms get punished.
But now that we are testing anybody for covid19 regardless of the symptoms and put persons with mild symptoms in quarantine for 10 days. Mutations with more severe symptoms might spread faster, especially when affected persons get hospitalized.
Is this chain of though actually a thing? Or is this just more evidence that I'm sitting on top of mount stupid, regarding to covid19?