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The API 20-C clinical yeast identification system (API Laboratory Products Ltd, St. Laurent, Quebec) has given routine clinical laboratories a means of readily discriminating among 15 species of Candida, many species of Cryptococcus, Geotrichum (a mould), Prototheca (an alga), Rhodotorula, Torulopsis, and Trichosporon that had not been previously available. It is to be expected that with the availability of this test, the microbiology laboratory would begin to identify these hitherto unfamiliar species. The unfamiliarity of the new name might well attract the clinicians' attention. We decided to look at the epidemiology of these yeasts in sputum and urine. For the yeast cultures of the first 3 months of 1992, there were 22 individuals with the isolation of Candida albicans from the urine and 10 from the sputum. For non-Candida albicans yeasts, there were 16 from urine (one C. parapsilosis, seven C. tropicalis, six Torulopsis glabrata, and two Trichosporon beigelii) and two from sputum (one C. parapsilosis and one C. tropicalis). Although yeasts other than C. albicans were seldom isolated from the sputum, it was also apparent on review of these cases that only onehalf of patients were admitted with yeasts other than C. albicans or, occasionally, C. tropicalis in the urine. Eight of the 16 patients with non-C. albicans yeasts in the urine on review were shown to have previously had a C. albicans isolated from the urine that had been treated with fluconazole before the appearance of the non-C, albicans isolate. Three-fourths of the patients with funguria had Foley catheters or suprapubic catheters, and the remainder had Texas (condom) catheters (two exceptions). Thus, canTable 1. Isolation of Yeast Species 1991 (as individuals) a |
