Performance Evaluation of RapiSure (EDGC) COVID-19 S1 RBD IgG/Neutralizing Ab Test for the Rapid Detection of SARS-CoV-2 Antibodiesopen access
- Authors
- Kim, Ha Nui; Yoon, Jung; Jang, Woong Sik; Lim, Chae Seung
- Issue Date
- Feb-2023
- Publisher
- MDPI AG
- Keywords
- COVID-19 antibodies; neutralizing antibodies; SARS-CoV-2; rapid chromatographic immunoassay
- Citation
- Diagnostics, v.13, no.4
- Indexed
- SCIE
SCOPUS
- Journal Title
- Diagnostics
- Volume
- 13
- Number
- 4
- URI
- https://scholarworks.korea.ac.kr/kumedicine/handle/2021.sw.kumedicine/62705
- DOI
- 10.3390/diagnostics13040643
- ISSN
- 2075-4418
- Abstract
- The accurate detection of anti-neutralizing SARS-CoV-2 antibodies can aid in the understanding of the development of protective immunity against COVID-19. This study evaluated the diagnostic performance of the RapiSure (EDGC) COVID-19 S1 RBD IgG/Neutralizing Ab Test. Using the 90% plaque reduction neutralization test (PRNT90) as a reference, 200 serum samples collected from 78 COVID-19-positive and 122 COVID-19-negative patients were divided into 76 PRNT90-positive and 124 PRNT90-negative groups. The ability of the RapiSure test to detect antibodies was compared to that of the STANDARD Q COVID-19 IgM/IgG Plus test and that of PRNT90. The positive, negative, and overall percent agreement between the RapiSure and STANDARD Q test was 95.7%, 89.3%, and 91.5%, respectively, with a Cohen's kappa of 0.82. The RapiSure neutralizing antibody test results revealed a sensitivity of 93.4% and a specificity of 100% compared to the PRNT results, with an overall percent agreement of 97.5% and Cohen's kappa of 0.95. The diagnostic performance of the RapiSure test was in good agreement with the STANDARD Q COVID-19 IgM/IgG Plus test and comparable to that of the PRNT. The RapiSure S1 RBD IgG/Neutralizing Ab Test was found to be convenient and reliable and, thus, can provide valuable information for rapid clinical decisions during the COVID-19 pandemic.
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Collections - 4. Research institute > Institute for Trauma Research > 1. Journal Articles
- 2. Clinical Science > Department of Laboratory Medicine > 1. Journal Articles
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