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Med Mycol. 2010 Feb;48(1):56-63. doi: 10.3109/13693780802716532.

Persistence of Candida species in the respiratory tract of cystic fibrosis patients.

Author information

1
Department of Pediatrics, University Würzburg Josef-Schneider-Strasse 1, D-97080 Würzburg, Germany.

Abstract

It is still controversial as to whether Candida spp. are transient or persistent colonizers of the respiratory tract of cystic fibrosis (CF) patients. We conducted a prospective study of 56 CF patients over a 30 month period to assess the distribution and persistence of different Candida spp. In vitro antifungal susceptibility testing was performed and the C. albicans isolates were typed with CARE-2 hybridization and other Candida spp. by RAPD-PCR for persistence and transmission. We found that the mean persistence of the most frequent Candida spp. was >or= 9 months. In patients from whom more than 10 isolates were recovered, we noted that at least 30% were genetically related and transmission of C. albicans in siblings was observed. The majority of all isolates were susceptible to all antifungals tested. We concluded that there was long-term persistence of Candida in the respiratory tract of CF patients and that transmission between siblings may be one possible means of acquisition. Whether long-term colonization with Candida strains can contribute to the chronic infection and inflammation in the CF lung requires further investigation.

PMID:
19184771
DOI:
10.3109/13693780802716532
[Indexed for MEDLINE]

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