That said the Hubei pattern is logistic which is what we saw with SARS in most nations where this hit in 2003. While there is nothing magical about a virus' spread and a logistic function they seems to reflect one of two things (or both): 1) that a virus MAY infect early the people most susceptible (i.e. The elderly, the infirm) which is the steep portion of the curve but as the quantum of susceptible people shrinks the spread isn't as great and you get the flattening, 2) the virus spreads like wildfire early but then outside controls like hand washing and self-quarantining takes hold and the curve flattens.
Many seem to be betting that #2 will save the nation. I think a combo of 1+2 would do the trick but it needn't be everyone; a risk-based quarantine (i.e. like the VA shutting down visitations and hospitals not allowing visiting hours) would be less economically devastating. But what do I know.
Anyway. I'm not a biostatistician and I do t play one on TV. Your forecast may vary. Be safe and FReep on!