In order to further optimize the detection strategy of COVID-19, the integrated group of the joint defense and control mechanism of the State Council recently decided to add antigen tests on the basis of nucleic acid detection. Compared with nucleic acid detection, antigen detection can be faster and more convenient, but the accuracy is low. It is generally used in the early stage of infection. On March 15, Zhang Chen, assistant director of Medical Laboratory Department of Zhongda Hospital Affiliated to Southeast University, demonstrated the method of antigen detection. According to the "COVID-19 antigen detection application plan" (Trial Implementation), which has been formulated and issued, the applicable population of antigen detection is as follows: first, people who go to primary health care institutions and have symptoms of respiratory tract, fever and symptoms within 5 days; Second, isolate observers, including those in home isolation observation, close connection and secondary close connection, entry isolation observation, sealing and control area and control area; Third, community residents who need antigen self-test. (on March 15, at Zhongda Hospital Affiliated to Southeast University, Zhang Chen prepared to collect samples after washing his hands.) (on March 15, at Zhongda Hospital Affiliated to Southeast University, Zhang Chen blew his nose before sample collection.) (on March 15, Zhang Chen took nasal swab samples in Zhongda Hospital Affiliated to Southeast University.) (on March 15, at Zhongda Hospital Affiliated to Southeast University, Zhang Chen eluted the swab after sampling.) (on March 15, in Zhongda Hospital Affiliated to Southeast University, Zhang Chen carried out the sampling step and vertically dropped the liquid into the sampling hole of the detection card.) (on March 15, Zhang Chen showed negative results in the affiliated Zhongda Hospital of Southeast University.) (Xinhua News Agency)
Edit：Huang Huiqun Responsible editor：Luo Meihua
Source：xinhuanet
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