The median age was 38.0 years (IQR, 32.0–57.0), and 46 (41.4 %) patients were males. 33.3 % of patients had at least one comorbidity (hypertension, diabetes, chronic obstructive pulmonary disease, malignancy, and chronic liver disease). The most common symptoms on admission were fever (71.2 %), cough (37.8 %), fatigue (18.0 %), and dyspnea (16.2 %). Symptoms including diarrhea (9.0 %), pharyngalgia (6.3 %), myalgia (6.3 %), and headache (3.6 %) were rare.