COVID-19 antigen detection refers to the detection of COVID-19 antigen with antibodies, and after comprehensive specificity, the virus is displayed, so as to judge whether COVID-19 is infected. Compared with nucleic acid detection, COVID-19 antigen detection can be faster and easier to operate, but its accuracy is lower, and it is generally used for early infection or self-monitoring.
Residents who are negative for COVID-19 antigen test and have no symptoms can be closely observed, and antigen test or nucleic acid test can be carried out when necessary.
Self-test antigen positive people, regardless of whether they have respiratory tract, fever and other symptoms, should immediately report to the local community, and the community should contact the emergency center to transport residents to medical institutions with fever clinics for nucleic acid detection according to the guidelines for transporting relevant personnel in COVID-19 epidemic.
According to the application scheme of antigen detection in COVID-19, the antigen positive results can be used for early triage and rapid management of suspected population, and the selected antigen detection reagent must be approved by National Medical Products Administration. The above scheme specifies the applicable population for antigen testing. First, people who go to primary health care institutions and have symptoms such as respiratory tract and fever within 5 days.
Second, isolated observers, including home isolated observers, close contacts and sub-close contacts, entry isolated observers, closed control areas and personnel in control areas; Third, the community residents who need antigen self-test. According to the plan, community residents who need self-test can purchase standard antigen detection reagents through retail pharmacies, online sales platforms and other channels for self-test.