Fanwu Gong, Hua-xing Wei, Qiangsheng Li, Liu Liu, Bofeng Li

7
Jul 23, 2021
Frontiers in Molecular Biosciences
DOI :
10.3389/fmolb.2021.682405
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The worldwide pandemic of COVID 19 has become a global public health crisis. Various clinical diagnosis methods have been developed to distinguish COVID 19–infected patients from healthy people. The nucleic acid test is the golden standard for virus detection as it is suitable for early diagnosis. However, due to the low amount of viral nucleic acid in the respiratory tract, the sensitivity of nucleic acid detection is unsatisfactory. As a result, serological screening began to be widely used with the merits of simple procedures, lower cost, and shorter detection time. Serological tests currently include the enzyme linked immunosorbent assay (ELISA), lateral flow immunoassay (LFIA), and chemiluminescence immunoassay (CLIA). This review describes various serological methods, discusses the performance and diagnostic effects of different methods, and points out the problems and the direction of optimization, to improve the efficiency of clinical diagnosis. These increasingly sophisticated and diverse serological diagnostic technologies will help human beings to control the spread of COVID 19.
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