1. Aged 2 to 65 years old, and signed informed consent, 2. According to the diagnostic criteria of the New Coronavirus Pneumonia Diagnosis and Treatment Program (Trial Version 7) issued by the National Health and Health Commission, those who have been diagnosed with CoVID-19 of light and common type and have been treated with hydroxychloroquine and Abidol but nCoV Nucleic acid did not turn negative. The specific diagnostic criteria are as follows: (1) light type: The clinical symptoms are mild, and there is no pneumonia manifestation in imaging, (2) Common type: It has fever, respiratory tract and other symptoms. Pneumonia can be seen on imaging, (3) The patient who have been diagnosed with CoVID-19 of light and common type and have been treated with hydroxychloroquine and Abidol but nCoV Nucleic acid did not turn negative.

1. Aged 2 to 65 years old, and signed informed consent, 2. According to the diagnostic criteria of the New Coronavirus Pneumonia Diagnosis and Treatment Program (Trial Version 7) issued by the National Health and Health Commission, those who have been diagnosed with CoVID-19 of light and common type and have been treated with hydroxychloroquine and Abidol but nCoV Nucleic acid did not turn negative. The specific diagnostic criteria are as follows: (1) light type: The clinical symptoms are mild, and there is no pneumonia manifestation in imaging, (2) Common type: It has fever, respiratory tract and other symptoms. Pneumonia can be seen on imaging, (3) The patient who have been diagnosed with CoVID-19 of light and common type and have been treated with hydroxychloroquine and Abidol but nCoV Nucleic acid did not turn negative.