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Abstract
A urease-antibody conjugate was used in an enzyme-linked immunoassay (ELISA) for the detection of antibodies in blastomycosis. A Blastomyces dermatitidis immunodiffusion antigen was used as the reference antigen in a solid phase indirect ELISA procedure and the endpoints were determined visually. Urease ELISA results on serum specimens from patients with blastomycosis compared favorably (90%) with results obtained spectrophotometrically by the alkaline phosphatase enzyme system. Specificity was evaluated with assays on sera from patients with histoplasmosis (20% cross reactivity), coccidioidomycosis (0% cross reactivity) and on Histoplasma capsulatum skin-test positive individuals (0% cross reactivity). The ease of performance of the urease ELISA combined with no requirements for specialized spectrophometric equipment are factors that favor the continued development of the test as an alternative serodiagnostic method. The assay may prove to be useful and a valuable adjunct to fungal antibody screening procedures.
Published Version
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Schedule a callMore From: Journal of medical and veterinary mycology : bi-monthly publication of the International Society for Human and Animal Mycology
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