And they simply are not. See the link below for how the length of intervention could impact the pandemic in the US.
https://www.nytimes.com/interactive/2020/03/25/opinion/coronavirus-trump-reopen-america.html
Just a heads up, I know some people with connections in China. There are a lot of rumors that doctors have a hard limit on the number of positive tests they are allowed to acknowledge. You don't have to believe me, I don't have any evidence besides hearsay, but they are people I personally trust.