China said today that 7 of the 17 deaths were from people with no previous health conditions so it appears to be more than just elderly and people with immune system issues.
The info (or lack thereof) is starting to piss me off - and it's starting to look really questionable. Case count is up modestly to 647 and fatalities have jumped a bit to 25. China comes out with this report that only old people are not surviving it (only one of the 17 was under 70 and he was 48 with a recent stroke and other health issues) - but that doesn't include the new deaths. But all in all, the numbers aren't necessarily alarming.
Meanwhile, there are images of overrun hospitals. There is various video of sick people on gurneys in the street. The city is being fogged with disinfectant. There are credible news accounts of doctors being out of supplies and overrun with patients. China is supposedly building a new structure for Wuhan patients that will be available in six days.
It doesn't make sense that there are still less than 650 cases. I'm guessing that they just don't have the capability to test everyone showing up with symptoms. So they're just trying to manage the situation, treat the symptoms. And based on reporting protocols, they're not going to report an unconfirmed case.