(1) patients with definite diagnosis of novel coronavirus pneumonia and hospitalized at Leishenshan hospital, (2) patients aged 18-80 years old, (3) patients who signed informed consents, voluntarily and persistently participated in the study and follow-up.

(1) patients with definite diagnosis of novel coronavirus pneumonia and hospitalized at Leishenshan hospital, (2) patients aged 18-80 years old, (3) patients who signed informed consents, voluntarily and persistently participated in the study and follow-up.