Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Classification of COVID‐19 cases
| Classification of COVID‐19 cases | Percentage of total observed cases | |
|---|---|---|
| Mild | Non‐pneumonia and mild pneumonia | 80.9% |
| Severe | Dyspnoea, 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 24–48 hr | 13.8% |
| Critical | Respiratory failure, septic shock, and/or multiple organ dysfunction or failure | 4.7% |
