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AuthorIsmail, Ahmed
AuthorShurrab, Farah M
AuthorAl-Jighefee, Hadeel T
AuthorAl-Sadeq, Duaa W
AuthorQotba, Hamda
AuthorAl-Shaar, Ibrahim Abdu
AuthorYassine, Hadi M
AuthorAbu-Raddad, Laith J
AuthorNasrallah, Gheyath K
Available date2021-08-08T10:44:12Z
Publication Date2021-07-30
Publication NameFrontiers in Bioscience
Identifierhttp://dx.doi.org/10.52586/4934
CitationAhmed Ismail, Farah M. Shurrab, Hadeel T. Al-Jighefee, Duaa W. Al-Sadeq, Hamda Qotba, Ibrahim Abdu Al-Shaar, Hadi. M. Yassine, Laith J. Abu-Raddad, Gheyath K. Nasrallah. Can commercial automated immunoassays be utilized to predict neutralizing antibodies after SARS-CoV-2 infection? A comparative study between three different assays. Frontiers in Bioscience-Landmark. 2021. 26(7); 198-206
URIhttp://hdl.handle.net/10576/21643
AbstractBackground: High-throughput assays that can infer neutralizing activity against SARS-CoV-2 are of great importance for assessing the immunity induced by natural infection and COVID-19 vaccines. We aimed to evaluate the performance and degree of correlation of three fully automated anti-SARS-CoV-2 immunoassays with neutralization activity using a surrogate virus-neutralizing test (sVNT) from GenScript, targeting the receptor-binding domain. Methods: 110 sera collected from PCR-confirmed asymptomatic COVID-19 individuals were tested for neutralizing antibodies (nAbs) using the sVNT. Positive samples were tested on three automated immunoassays targeting different viral antigens: Mindray CL-900i®, Abbott Architect, and Ortho VITROS®. The diagnostic sensitivity, specificity, agreement, and correlation with the sVNT were assessed. Receiver operating characteristic (ROC) curve analysis was performed to determine optimal thresholds for predicting the presence of neutralizing activity by each assay. Results: All three assays showed 100% specificities. The highest sensitivity was 99.0%, demonstrated by VITROS®, followed by 94.3%, for CL-900i®, and 81.0%, for Architect. Both VITROS® and CL-900i® had the strongest correlation with the sVNT (ρ = 0.718 and ρ = 0.712, respectively), while Architect showed a moderate correlation (ρ = 0.618). ROC curve analysis indicated that the manufacturer’s recommended cutoff values are adequate for predicting the presence of nAbs and providing a strong correlation with the sVNT. Conclusion: VITROS® and CL-900i® serological assays, which detect antibodies against SARS-CoV-2 spike protein, could serve as reliable assays to predict neutralization activity after infection or vaccination
Languageen
PublisherIMR
SubjectAutomated immunoassay
SubjectCLIA
SubjectCOVID-19
SubjectNeutralizing antibodies
SubjectSARS-CoV-2
SubjectSerology
SubjectSurrogate virus neutralization test (sVNT)
TitleCan commercial automated immunoassays be utilized to predict neutralizing antibodies after SARS-CoV-2 infection? A comparative study between three different assays.
TypeArticle
Pagination198-206
Issue Number7
Volume Number26


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