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Assessing the Detection of Middle East Respiratory Syndrome Coronavirus IgG in Suspected and Proven Cases of Middle East Respiratory Syndrome Coronavirus Infection.

Abstract：

:Middle East respiratory syndrome coronavirus (MERS-CoV) causes severe respiratory disease with significant mortality. Two testing methods are currently used for MERS-CoV diagnostics: nucleic acid detection (the gold standard) and serological analysis. In this study, we evaluated the detection of MERS-CoV-IgG in suspected and proven cases of MERS-CoV infection. We enrolled 174 patients: 113 had respiratory symptoms/suspected MERS-CoV infection, 31 had confirmed influenza A or B infection, 23 had a recent confirmed MERS-CoV infection, and 7 had confirmed MERS-CoV infection 1 year before. All underwent MERS-CoV RNA and MERS-CoV-IgG testing. Thirty patients were found to be MERS-CoV RNA positive; however, during serological analysis, only 6 (3.4%) patients were positive for MERS-CoV-IgG, 1 (0.6%) patient was equivocal, and 167 (96%) patients were negative. Among the serological positives, four were recently MERS-CoV RNA positive and two were MERS-CoV RNA negative. No cross-reactivity to influenza A or B was detected. Based on the lack of correlation between nucleic acid and serological analysis, we conclude that MERS-CoV-IgG testing may not be suitable for diagnosing acute infection or estimating its prevalence during an outbreak. In addition, our findings show that MERS-CoV-IgG may not have significant value in determining disease severity or prognosis.

journal_name

Viral Immunol

journal_title

Viral immunology

authors

Alhetheel A,Altalhi H,Albarrag A,Shakoor Z,Mohamed D,El-Hazmi M,Somily A,Barry M,Bakhrebah M,Nassar M

doi

10.1089/vim.2017.0091

subject

Has Abstract

pub_date

2017-11-01 00:00:00

pages

649-653

issue

9

eissn

0882-8245

issn

1557-8976

journal_volume

30

pub_type

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