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KMID : 1101420210530030257
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Korean Journal of Clinical Laboratory Science
2021 Volume.53 No. 3 p.257 ~ p.265
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Development of COVID-19 Neutralizing Antibody (NAb) Detection Kits Using the S1 RBD Protein of SARS-CoV-2
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Choi Dong-Ok
Lee Kang-Moon
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Abstract
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The COVID-19 virus is a β-genus virus that causes infection by mediating the angiotensin convertible enzyme 2 (ACE2) receptor, which is distributed in large numbers in the human respiratory tract. The disease requires effective post-management of antibody production by complete healers and vaccinators because there is no perfect remedy for the virus infection. This study aimed to develop recombinant proteins specifically responsive to neutralizing antibodies in clinical specimens and use them to develop a rapid diagnostic kit to diagnose neutralizing antibodies quickly and conveniently against the COVID-19 virus and confirm the possibility of commercialization through a performance evaluation. Rapid diagnostic kits using COVID-19 S1 RBD recombinant proteins can be applied to rapid diagnostic kits, with positive percentage agreement (PPA) and negative percentage agreement (NPA) of 100% and 98.3%, respectively, compared to the U.S. FDA-approved ELISA kits.
If the performance of the rapid diagnostic kit is improved and neutralizing antibodies can be analyzed quantitatively using quantitative analysis equipment, it can be used as important data to predict immunity to the COVID-19 virus and determine additional vaccinations.
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KEYWORD
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COVID-19, Immunoassay, Neutralizing antibody, Point-of-care diagnostic testing, SARS-CoV-2
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