1. Aged 18-75 years old, 2. Patients with novel coronavirus infection pneumonia were confirmed by RT-PCR and clinical symptoms. The diagnostic criteria refer to Pneumonitis Diagnosis and Treatment Scheme for Novel Coronavirus Infection (Trial Version 5) , 3. Patients with newly diagnosed respiratory system discomfort who have been hospitalized (the diagnosis time of respiratory system discomfort shall not exceed 7 days), 4. Women and partners who have no planned pregnancy within the past six months, and are willing to take effective contraceptive measures within 30 days from the first administration of the study drug to the last administration, 5. Agree not to participate in other clinical studies within 30 days from the first administration of the study drug to the last administration, 6. Patients who voluntarily signed informed consent.

1. Aged 18-75 years old, 2. Patients with novel coronavirus infection pneumonia were confirmed by RT-PCR and clinical symptoms. The diagnostic criteria refer to Pneumonitis Diagnosis and Treatment Scheme for Novel Coronavirus Infection (Trial Version 5) , 3. Patients with newly diagnosed respiratory system discomfort who have been hospitalized (the diagnosis time of respiratory system discomfort shall not exceed 7 days), 4. Women and partners who have no planned pregnancy within the past six months, and are willing to take effective contraceptive measures within 30 days from the first administration of the study drug to the last administration, 5. Agree not to participate in other clinical studies within 30 days from the first administration of the study drug to the last administration, 6. Patients who voluntarily signed informed consent.