Clinical features • Preexisting chronic pulmonary disease (2.1%) • Fever (100%) • Cough (57.3%) • Sputum (29%) • Sore throat (23.2%) Coryza (22.5%) • Inspiratory crackles Fever (3/3)Dyspnea (3/3)Mildly productive cough (1/3)Death within 9-15 days of illness • Fever (98%) • Cough (68% on admission to isolation, 74% after hospitalization, 26% productive) 4.5 ± 1.9 days after fever onset • Dyspnea (40% on admission to isolation) • O2 saturation <90% on room air (51% on hospitalization, 11% on admission to isolation) • Fever (100%), recurred in 85% at mean 8.9 days • Cough (29%) • Spontaneous pneumomediastinum (12%) during follow-up • Sore throat (11%) • Shortness of breath (4%) • O2 saturation < 90% on room air (44mean 9.1 days after symptom onset)