Diagnostic criteria
Suspected cases : Comprehensive analysis combining the following epidemiological history and clinical manifestations, there is any one of the epidemiological history or no epidemiological history, and has two points of the clinical manifestations.
(1) Epidemiological history: Travel and residence history in Wuhan and surrounding areas, or other communities with case reports within 14 days before the onset. History of contact with cases of COVID-19 in the 14 days before the onset. Have contacted patients with fever or respiratory symptoms from surrounding areas of Wuhan, or from communities with case reports in the 14 days before the onset; Cluster onset.
(2) Clinical manifestations: Fever and / or respiratory symptoms. Imaging features of the COVID-19. Normal or reduced white blood cell count or reduced lymphocyte count in the early stages of onset.
Clinical diagnosis cases : The suspected cases with the imaging features of pneumonia.
Confirmed case : Clinically confirmed cases or suspected cases, with one of the following etiological evidence.
(1) Real-time fluorescent RT-PCR detection of SARS-CoV-2 nucleic acid positive.
(2) The viral gene sequence is highly homologous to known SARS-CoV-2.5