Suspected cases
|
Patients have any epidemiological history and conform to at least two clinical manifestations, or patients without clear epidemiological history conform to three clinical manifestations. |
Epidemiological history:
|
Ⅰ. Travel or residence history of an affected area or close contact with a suspected or confirmed case within 14 days before onset |
Ⅱ. Have contact with COVID-19 cases (nucleic acid positive) within 14 days prior to onset |
Ⅲ. Have contact with patients with fever or respiratory symptoms from an affected area, or from communities with COVID-19 cases |
Ⅳ. Cluster onset (two or more cases of fever and/or respiratory symptoms within 2 weeks in a small area such as home, office, school, and class) |
Clinical manifestations:
|
Ⅰ. Fever and/or respiratory symptoms |
Ⅱ. With COVID-19 imaging characteristics |
Ⅲ. Normal or reduced number of white blood cells and/or lymphocytes in early COVID-19 |
Confirmed cases
|
The suspected cases have at least one of the following etiological or serological evidences. |
Ⅰ. The real-time fluorescent RT-PCR for specimens with a positive result of SARS-CoV-2 RNA |
Ⅱ. Virus gene sequences are highly homologous to SARS-CoV-2 |
Ⅲ. Positive SARS-CoV-2 specific IgM antibody and IgG antibody in serum; the serum SARS-CoV-2 specific IgG antibody changes from negative to positive or is four times higher in the recovery period than in the acute phase |