Previous Article | Next Article ![]()
Journal of Clinical Microbiology, October 1998, p. 2869-2873, Vol. 36, No. 10
Department of Bacteriology and Mycology,
Janssen Research Foundation, 2340 Beerse, Belgium
Received 2 April 1998/Returned for modification 26 June
1998/Accepted 10 July 1998
To establish the historical prevalence of the novel yeast
species Candida dubliniensis, a survey of 2,589 yeasts
originally identified as Candida albicans and maintained in
a stock collection dating back to the early 1970s was undertaken. A
total of 590 yeasts, including 93 (18.5%)
0095-1137/98/$04.00+0
Copyright © 1998, American Society for Microbiology. All rights reserved.
Prevalence of Candida dubliniensis Isolates in a
Yeast Stock Collection
-glucosidase-negative
isolates among 502 isolates that showed abnormal colony colors on a
differential chromogenic agar and 497 other isolates, were subjected to
DNA fingerprinting with the moderately repetitive sequence Ca3. On this
basis, 53 yeasts were reidentified as C. dubliniensis
(including the C. dubliniensis type strain, included
as a blind control in the panel of yeasts). The 52 newly found isolates
came from 36 different persons, and a further 3 C. dubliniensis isolates were detected by DNA fingerprinting of
previously untested isolates from one of these individuals. The
prevalence of C. dubliniensis among yeasts in
oral and fecal samples was significantly higher than that among yeasts
from other anatomical sites and was significantly higher among human
immunodeficiency virus (HIV)-infected individuals than among known or
presumed HIV-negative individuals. However, a single vaginal isolate
and two oral isolates from healthy volunteers confirmed that the
species is restricted neither to gastrointestinal sites nor to patients
with overt disease. The oldest examples of C. dubliniensis were from oral samples of three patients in the
United Kingdom in 1973 and 1975. In comparison with age-matched control
isolates of C. albicans, the
C. dubliniensis isolates showed slightly higher levels
of susceptibility in vitro to amphotericin B and flucytosine and
slightly lower levels of susceptibility to three azole antifungal
agents.
*
Corresponding author. Mailing address: Department of
Bacteriology and Mycology, Janssen Research Foundation, B-2340 Beerse, Belgium. Phone: (32) 14-603004. Fax: (32) 14-605403. E-mail:
fodds{at}janbe.jnj.com.
This article has been cited by other articles:
| Antimicrob. Agents Chemother. | Clin. Microbiol. Rev. |
|---|---|
| Clin. Vaccine Immunol. | ALL ASM JOURNALS |
|---|