Body temperature recovery time in the HCQ group was shorter than the control group (2.2 vs. 3.2 days, p = 0.0008).Cough remission time was significantly decreased in the HCQ group (2.0 vs. 3.1 days, p = 0.0016).Improvement of pneumonia in HCQ group (80.6% vs. 54.8%)Pneumonia absorption in HCQ group (61.3%)