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Case Reports
. 2010 Jun;48(6):2047-9.
doi: 10.1128/JCM.01843-09. Epub 2010 Mar 31.

False-positive IgM serology in coccidioidomycosis

Tim Kuberski  1 , Judith Herrig, D Pappagianis
Affiliations
Case Reports

False-positive IgM serology in coccidioidomycosis

Tim Kuberski et al. J Clin Microbiol. 2010 Jun.

Abstract

The clinical observation has been made that there might be an unacceptable number of false-positive enzyme immunoassay (EIA) test results for IgM among persons suspected of having coccidioidomycosis. Patients with a positive result for IgM by EIA are thought to have a diagnosis of acute coccidioidomycosis. However, this study found that 82% of patients with an IgM-positive and IgG-negative EIA result did not have coccidioidomycosis.

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