The biggest threat here is if the virus mutates into something more deadly. The Chinese infected list is massively inflated due to the changing of diagnostic procedures.
In china, you don't need to test positive for coronavirus to be diagnosed with coronavirus, because of the shortage of testing kits.
As of now, if you have flu like symptoms, you will be administered a chest xray. If that chest xray comes back with signs of pneumonia, you will be diagnosed with coronavirus. The problem with this method is that you don't need to have coronavirus to have pneumonia,
you can get it from the regular flu or other illnesses. Thus, the data put out is not accurately representative of how many cases there truly is in China.