期刊
MEDICAL MYCOLOGY
卷 49, 期 1, 页码 103-106出版社
INFORMA HEALTHCARE
DOI: 10.3109/13693786.2010.487076
关键词
oral yeast colonization; healthy individual; antifungal susceptibility
资金
- [NHRI CL-098-PP04]
Opportunistic yeast pathogens may switch from harmless commensal to pathogenic relationships with the host under different conditions. They usually cause superficial infections, but may be the agents of more significant infections in immunocompromised patients. To investigate yeast colonization in the oral cavities of clinically healthy individuals, we collected oral swabs from 323 students and staff at the National Health Research Institutes, Taiwan. A total of 49 (15.2%) volunteers were colonized by low levels of yeasts and of these, only 3 (6.1%) were co-colonized by more than one species. Among the 52 isolates, comprising seven fungal genera and 13 species, Candida albicans (57.7%) was the dominant species, followed by Candida parapsilosis (15.4%). There was only one isolate of C. parapsilosis that showed, in vitro, a high (2 mu g/ml) minimum inhibitory concentration (MIC) to amphotericin B. There were six (11.5%) isolates with fluconazole MICs >= 64 mu g/ml and all of them were non-Candida species. With the exception of Cryptococcus albidus, the remaining five isolates had voriconazole MICs >= 4 mu g/ml. In addition, there was one C. albicans isolate with relatively high fluconazole (32 mu g/ml) and voriconazole (4 mu g/ml) MICs.
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