https://www.ft.com/content/16764a22-69ca-11ea-a3c9-1fe6fedcca75
of course let´s not forget that "this does suggest another reason for “flattening the curve”: in addition to making the health system itself able to deal with the increase and peak of cases, it makes those strains that are highly virulent less fit, and so it encourages the evolution of the pathogen P towards low virulence. Failing to take steps to slow the rate of infection will lead to a higher virulence in the longer term."
https://evolvingthoughts.net/2020/03/18/virulence-and-vectors