Most cases were classified as mild (81%; ie, nonpneumonia and mild pneumonia).
However, 14% were severe (ie, dyspnea, respiratory frequency ≥30/min, blood oxygen saturation ≤93%, partial pressure of arterial oxygen to fraction of inspired oxygen ratio <300, and/or lung infiltrates >50% within 24 to 48 hours),
and 5% were critical (ie, respiratory failure, septic shock, and/or multiple organ dysfunction or failure) (Box).1
Both "severe" and "critical" obviously mean a hospital stay so again about 20% will need to be hospitalized...which MORE than crashes the medical system if it becomes real widespread.
China is report 7365 critical cases out of a total 79,828.
That’s 9.2% in critical, much higher than the 5% the China CDC report said as of Feb 11th.
China could be understating the number of cases to make it look like they have it under control in order to reopen plants.
Or Maybe there were a lot of unresolved cases in the FEB 11 report that hadn’t gone critical yet.