Rapid Detection of Mycobacterium tuberculosis Complex and Rifampin Resistance in Smear-Negative Clinical Samples by Use of an Integrated Real-Time PCR Method

被引:118
|
作者
Moure, Raquel [1 ]
Munoz, Laura [2 ]
Torres, Miriam [1 ]
Santin, Miguel [2 ,4 ]
Martin, Rogelio [1 ,3 ]
Alcaide, Fernando [1 ,3 ]
机构
[1] Bellvitge Hosp, IDIBELL, Dept Microbiol, Barcelona 08907, Spain
[2] Bellvitge Hosp, IDIBELL, Dept Infect Dis, Barcelona 08907, Spain
[3] Univ Barcelona, Dept Pathol & Expt Therapeut, Barcelona 08907, Spain
[4] Univ Barcelona, Dept Clin Sci, Barcelona 08907, Spain
关键词
PULMONARY TUBERCULOSIS; DIAGNOSIS; TESTS;
D O I
10.1128/JCM.01831-10
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Sixty-four of 85 (75.3%) smear-negative respiratory (n = 78) and nonrespiratory (n = 7) samples with positive cultures of Mycobacterium tuberculosis complex (MTC) were detected by the GeneXpert system using the Xpert MTB/RIF assay (GX). In addition, GX found rpoB mutations in all six of the rifampin-resistant strains detected. The test was negative in 20 culture-negative and 20 nontuberculous culture-positive samples (100% specificity). GX offers high potential for the diagnosis of tuberculosis due to its capacity for direct detection of MTC, its rapidity, and its simplicity.
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页码:1137 / 1139
页数:3
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