But this is the wrong idea. You have to get R0 down close to 1.0 ( from around 3.0) in order to really slow the growth – ordinary influenza has an R0 of around 1.3 and it grows way too rapidly.
Don’t aim at getting close to 1.0: aim at getting below. Basically, the region of parameter space that would correspond to ‘flattening the curve’ is tiny, and 90% of the way to a clear win.
There is no substitute for victory.