Comparison of Four Assays for the Detection of Cryptococcal Antigen

Author:

Binnicker M. J.1,Jespersen D. J.1,Bestrom J. E.1,Rollins L. O.1

Affiliation:

1. Division of Clinical Microbiology, Department of Laboratory Medicine and Pathology, Mayo Clinic and Mayo Clinic College of Medicine, Rochester, Minnesota, USA

Abstract

ABSTRACT We compared the performance of four assays for the detection of cryptococcal antigen in serum samples ( n = 634) and cerebrospinal fluid (CSF) samples ( n = 51). Compared to latex agglutination, the sensitivity and specificity of the Premier enzyme immunoassay (EIA), Alpha CrAg EIA, and CrAg lateral flow assay (LFA) were 55.6 and 100%, 100 and 99.7%, and 100 and 99.8%, respectively, from serum samples. There was 100% agreement among the four tests for CSF samples, with 18 samples testing positive by each of the assays.

Publisher

American Society for Microbiology

Subject

Microbiology (medical),Clinical Biochemistry,Immunology,Immunology and Allergy

Reference8 articles.

1. Evaluation of three commercial latex agglutination kits and a commercial enzyme immunoassay for the detection of cryptococcal antigen;Babady NE;Med. Mycol.,2009

2. CDC . 5 January 2012 posting date. C. neoformans cryptococcosis: cryptococcosis statistics. Department of Health and Human Services, Centers for Disease Control and Prevention, Atlanta, GA. http://www.cdc.gov/fungal/cryptococcosis-neoformans/statistics.html.

3. Evaluation of a novel point-of-care cryptococcal antigen test on serum, plasma, and urine from patients with HIV-associated cryptococcal meningitis;Jarvis JN;Clin. Infect. Dis.,2011

4. Comparison of two rapid latex agglutination tests for detection of cryptococcal capsular polysaccharide;Jaye DL;Am. J. Clin. Pathol.,1998

5. Evaluation of new monoclonal antibody-based latex agglutination test for detection of cryptococcal polysaccharide antigen in serum and cerebrospinal fluid

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