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  • Title: Use of specialised isolation media for recognition and identification of Candida dubliniensis isolates from HIV-infected patients.
    Author: Schoofs A, Odds FC, Colebunders R, Ieven M, Goossens H.
    Journal: Eur J Clin Microbiol Infect Dis; 1997 Apr; 16(4):296-300. PubMed ID: 9177963.
    Abstract:
    During a study of oral rinses of 130 HIV-infected individuals, both typical and atypical Candida albicans colonies were isolated from ten patients on a yeast differential medium. Typical Candida albicans colonies were light green; atypical colonies were dark green. Both types of colonies were germ tube-positive and produced chlamydospores. However, DNA fingerprinting of the atypical isolates with the Ca3 Candida albicans-specific probe showed that they belonged to the recently described species Candida dubliniensis. Candida dubliniensis colonies could also be differentiated from Candida albicans colonies on isolation plates by the absence of fluorescence of colonies on methyl blue-Sabouraud agar under Wood's light. Among other phenotypic characteristics, only the absence of intracellular beta-glucosidase activity reliably distinguished Candida albicans from Candida dubliniensis. Candida dubliniensis may be underreported in clinical samples because most currently used isolation and identification methods fail to recognize this yeast.
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