1)Patients who have given written consent to participate in the study2)SARS-CoV-2 PCR Positive3) Patients in need of inpatient treatment4)Patents with no obvious pneumonia on chest images5)Patients who are hospitalized and can start study drug administration within 5days after the onset of COVID-19 symptoms

1)Patients who have given written consent to participate in the study2)SARS-CoV-2 PCR Positive3) Patients in need of inpatient treatment4)Patents with no obvious pneumonia on chest images5)Patients who are hospitalized and can start study drug administration within 5days after the onset of COVID-19 symptoms