[RalfWausE]

Would it not be possible that through quarantine of infected people we "outbreed" the dangerous strains of covid19? People with symptoms going to be isolated, so their strain of the virus can not infect as much people as a hypothetical other strain which don´t produce symptoms... just an idea.

[raducu]

The problem is in as much as 50% of the cases, the same deadly virus causes no symptoms in some, so you really don't know if you are asymptomatic because of the strain or your immune system.

[andialo]

That would be my guess too.

More testing does not explain falling CFR in South Korea for one thing.

[zaroth]

Not ventilating people at the first sign of O2 dropping helps a lot.