Identification of moulds in the diagnostic laboratory -: an algorithm implementing molecular and phenotypic methods

被引:33
作者
Ciardo, Diana E. [1 ]
Schaer, Gertrud [1 ]
Altwegg, Martin [1 ]
Boerrger, Erik C. [1 ]
Bosshard, Philipp P. [1 ]
机构
[1] Univ Zurich, Inst Med Mikrobiol, CH-8006 Zurich, Switzerland
关键词
moulds; ITS; identification; Sequencing; PCR; fungi; algorithm; diagnostics;
D O I
10.1016/j.diagmicrobio.2007.04.020
中图分类号
R51 [传染病];
学科分类号
100401 ;
摘要
Sequence analysis provides a valuable alternative to phenotypic identification of moulds, especially for isolates lacking characteristic morphology. In this comparative prospective study, isolates that could not be identified by standard phenotypic criteria within 5 days (n = 244) were subjected to sequence analysis and further in-depth phenotypic investigations. Comparison of sequence-based with extended phenotypic identification revealed that sequence analysis was more precise in 52.0% of the isolates; in 38.6% of the isolates, both methods gave concordant results. The construction of a database consisting of high-quality sequences allowed improvement of sequence-based identification. Based on these results, we propose a diagnostic algorithm for the effective use of both phenotypic and genetic procedures for identification of moulds in the diagnostic laboratory. (c) 2007 Elsevier Inc. All rights reserved.
引用
收藏
页码:49 / 60
页数:12
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