1. Aged 18 to 75 years old, 2. mild or normal patients, 3. not using chloroquine phosphate, lopinavir other than other antiviral drugs, 4. under the gastroscope, there was mucosal damage and pathological biopsy of 2019-ncov nucleic acid positive, 5. confirmed cases meeting all the following criteria (the 5th edition of the medical guidelines): (1) epidemiological history, (2) Clinical manifestations (in accordance with any 2 of the following): fever, In the early stage of the disease, the total number of white blood cells was normal or decreased, or the lymphocyte count was decreased. In the early stage of chest imaging, multiple small plaques and stromal changes were observed, especially in the lung. Then, it developed into multiple ground-glass shadows and infiltrating shadows in both lungs. In severe cases, lung consolidation may occur, and pleural effusion is rare, (3) Confirmed: the suspected case has one of the following etiological evidence: respiratory or blood specimens were tested positive for novel coronavirus nucleic acid by real-time fluorescent rt-pcr, Respiratory or blood specimen virus gene sequencing, and known novel coronavirus highly homologous.

1. Aged 18 to 75 years old, 2. mild or normal patients, 3. not using chloroquine phosphate, lopinavir other than other antiviral drugs, 4. under the gastroscope, there was mucosal damage and pathological biopsy of 2019-ncov nucleic acid positive, 5. confirmed cases meeting all the following criteria (the 5th edition of the medical guidelines): (1) epidemiological history, (2) Clinical manifestations (in accordance with any 2 of the following): fever, In the early stage of the disease, the total number of white blood cells was normal or decreased, or the lymphocyte count was decreased. In the early stage of chest imaging, multiple small plaques and stromal changes were observed, especially in the lung. Then, it developed into multiple ground-glass shadows and infiltrating shadows in both lungs. In severe cases, lung consolidation may occur, and pleural effusion is rare, (3) Confirmed: the suspected case has one of the following etiological evidence: respiratory or blood specimens were tested positive for novel coronavirus nucleic acid by real-time fluorescent rt-pcr, Respiratory or blood specimen virus gene sequencing, and known novel coronavirus highly homologous.