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Evaluation of a rapid bacteriophage-based method for the detection of Mycobacterium tuberculosis in clinical samples



Evaluation of a rapid bacteriophage-based method for the detection of Mycobacterium tuberculosis in clinical samples



Journal of Medical Microbiology 52(Pt 4): 331-335



Rapid, sensitive and low-cost methods are needed urgently for the detection of Mycobacterium tuberculosis in clinical samples, especially in developing countries. To this end, the clinical performance of FASTPlaqueTB(TM) (a bacteriophage-based method) has been studied in parallel with microscopy, standard microbiological culture and in-house IS6110-based PCR methods. A total of 64 samples, including 42 sputum samples and 22 urine samples, were tested in this study. The sensitivity, specificity and overall accuracy values for the FASTPlaqueTB assay relative to that of culture were respectively 76.5, 95 and 90 %. The corresponding values for the in-house IS6110-based PCR assay were 88, 91 and 90 % and, for Ziehl-Neelsen staining, were 59, 95 and 85 %. FASTPlaqueTB gave better clinical performance with urine samples than with sputum samples (sensitivity, specificity and overall accuracy were 100 % with urine samples and 64, 93 and 84 % with sputum samples). The 100 % sensitivity of FASTPlaqueTB was higher than that of the corresponding values for PCR (67 %) with urine samples. In conclusion, FASTPlaqueTB proved to be sensitive, cheap relative to the PCR and rapid. It is able to detect M. tuberculosis in clinical samples within 1 day, reducing the time to diagnosis in comparison with culture.

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Accession: 048993906

Download citation: RISBibTeXText

PMID: 12676872

DOI: 10.1099/jmm.0.05091-0


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