Which of the followings are included in the epidemiological history of COVID-19
A、Travel or residential history in Wuhan and its surrounding areas or at other residential community with reported confirmed cases, within 14 days before onset.
B、Contact with confirmed SARS-CoV-2 cases (positive for nucleic acid test) , within 14 days before onset.
C、Contact with patients who have fever or respiratory symptoms from Wuhan and its surrounding areas or other residential community with reported confirmed cases, within 14 days before onset.
D、Clustering incidence (2 or above cases of fever and / or respiratory symptoms in small-scale areas such as family, office, school class, etc., within 2 weeks ).