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Journal of Clinical Microbiology, February 2004, p. 858-861, Vol. 42, No. 2
0095-1137/04/$08.00+0 DOI: 10.1128/JCM.42.2.858-861.2004
Copyright © 2004, American Society for Microbiology. All Rights Reserved.
Resolution of Discrepant Results for Candida Species Identification by Using DNA Probes
Catherine Coignard, Steven F. Hurst, Lynette E. Benjamin, Mary E. Brandt, David W. Warnock, and Christine J. Morrison*
Mycotic Diseases Branch, Division of Bacterial and Mycotic Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
Received 12 September 2003/
Returned for modification 14 October 2003/
Accepted 3 November 2003
Candida species bloodstream isolates were collected from institutions participating in an active, population-based surveillance for candidemia. Species identifications were performed locally and then confirmed at the Centers for Disease Control and Prevention (CDC) by phenotype-based methods. Discrepancies in species identification between the referring institution and the CDC were noted for 43 of 935 isolates (4.6%). A DNA probe-based species identification system (PCR-enzyme immunoassay [EIA]) was then used to resolve these discrepancies. The PCR-EIA result was identical to the CDC phenotypic identification method for 98% of the isolates tested. The most frequently misidentified species was Candida glabrata (37% of all discrepant identifications). Such misidentifications could lead to the administration of inappropriate therapy given the propensity of C. glabrata to develop resistance to azole antifungal drugs.
* Corresponding author. Mailing address: Mycotic Diseases Branch, Centers for Disease Control and Prevention, 1600 Clifton Rd., NE, Mailstop G-11, Atlanta, GA 30333. Phone: (404) 639-3098. Fax: (404) 639-3546. E-mail:
cjm3{at}cdc.gov.
Journal of Clinical Microbiology, February 2004, p. 858-861, Vol. 42, No. 2
0095-1137/04/$08.00+0 DOI: 10.1128/JCM.42.2.858-861.2004
Copyright © 2004, American Society for Microbiology. All Rights Reserved.
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