Efficacy and Safety of Jaktinib in Patients With COVID-19 Pneumonia.

Inclusion Criteria: * 18 years of age, male or female; * History of COVID-19 infection within 1 week; * Subjects with HRCT consistent with viral pneumonia (Judged by investigator) and meeting any of the following criteria: With fever, respiratory symptoms; Shortness of breath present,RR ≥30 breaths/min. * Clear consciousness, Capable and voluntary informed consent. Exclusion Criteria: * Unable to take tablets orally Or suspected hypersensitivity to Jaktinib, drugs of the same class, or their excipients, Patients with severe gastrointestinal dysfunction affecting drug absorption; * Any person meeting criteria for critical pneumonia; * Patients considered unsuitable for this trial by the investigator.