Wu Jinglei, director of the Shanghai Health and Health Commission, said at the epidemic prevention and control conference held today (24th) that in order to save nucleic acid testing time, antigen testing is currently used in the early stage of group screening in Shanghai, but antigen testing cannot be used for nucleic acid testing. Negative certificate. At present, for confirmed or positive infections, nucleic acid testing is the basis for diagnosis.
Wu Jinglei introduced that antigen detection is characterized by easy operation and relatively short detection time, but its disadvantage is that its sensitivity is relatively poor. At present, for people diagnosed with new coronary pneumonia or positive infection, nucleic acid test is the basis for diagnosis, but antigen test is not the basis for diagnosis. Negative antigen test cannot replace negative nucleic acid.
At present, Shanghai is taking advantage of the fast antigen detection to carry out in some specific groups and specific areas in an organized manner. Once positive, nucleic acid re-testing, diagnosis or exclusion is carried out immediately.
(Headquarters reporter Yang Jing Wang Dianjia Cheng Yilin)