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Journal of Clinical Microbiology, February 1998, p. 421-426, Vol. 36, No. 2
0095-1137/98/$04.00+0
Copyright © 1998, American Society for Microbiology. All rights reserved.

Nosocomial Candida glabrata Colonization: an Epidemiologic Study

Jose A. Vazquez,1,2,3,* Louise M. Dembry,1,dagger Veronica Sanchez,1 Mary A. Vazquez,3 Jack D. Sobel,1 Carl Dmuchowski,3,4 and Marcus J. Zervos1,3

Department of Internal Medicine, Divisions of Infectious Diseases1 and Biostatistics,4 Wayne State University School of Medicine, and Veterans Administration Medical Center,2 Detroit, and William Beaumont Hospital, Royal Oak,3 Michigan

Received 4 August 1997/Returned for modification 21 October 1997/Accepted 8 November 1997

Candida glabrata has emerged as an important nosocomial pathogen, yet little is known about its epidemiology. We prospectively followed 98 patients admitted to a medical intensive care unit and the bone marrow transplant unit of a university hospital. Samples from environmental surfaces and the hands of hospital personnel were also cultured. Patients with newly acquired C. glabrata strains were compared to controls who were culture negative for C. glabrata. C. glabrata was recovered from multiple sites from 24 patients and three environmental surfaces. Sixteen patients (17%) acquired C. glabrata after admission to the study units. Significant risk factors for the nosocomial acquisition of C. glabrata were prolonged duration of hospitalization in the unit and prior antimicrobial use. Strain delineation by restriction enzyme analysis revealed 28 different strains of C. glabrata; three strain types were common to nine patients. The environmental isolates were of the same strain type and common to five patients (four patients with newly acquired strains). These results suggest the possibility of exogenous nosocomial acquisition of C. glabrata, including the possible acquisition from the hospital environment. Transmission may be by indirect contact since identical strains of C. glabrata were recovered from patients who were geographically and temporally associated.

* Corresponding author. Mailing address: Wayne State University School of Medicine, Harper Professional Building, Suite 2140, 4160 John R, Detroit, MI 48201. Phone: (313) 745-9131. Fax: (313) 993-0302. E-mail: JVAZQUEZ{at}oncgate.roc.wayne.edu.

dagger Present address: Yale University School of Medicine, New Haven, CT 06504.

Journal of Clinical Microbiology, February 1998, p. 421-426, Vol. 36, No. 2
0095-1137/98/$04.00+0
Copyright © 1998, American Society for Microbiology. All rights reserved.


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