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Review

Drug-susceptibility testing in TB: current status and future prospects

, &
Pages 497-510 | Published online: 09 Jan 2014
 

Abstract

The rising number of resistant and multidrug-resistant Mycobacterium tuberculosis strains and the emergence of extensively drug-resistant strains substantiate the urgent demand for rapid and reliable techniques for the detection of drug-resistant TB. In recent years, a multitude of techniques for rapid drug-susceptibility testing have been designed and evaluated. Two different strategies for the assessment of drug resistance can be followed; phenotypic determination has been common practice for years, whereas more recently the genetic detection of mutations that confer for drug resistance has been established. Novel liquid culture-based drug-susceptibility testing techniques have been evaluated; several of them have proved their reliability and accuracy, while others need more evaluation or a different performance due to biosafety risks. Among the molecular tests, line-probe assays seem to be the most promising tools for a rapid and very specific and sensitive detection of multidrug-resistant M. tuberculosis.

Financial & competing interests disclosure

The authors have no relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript. This includes employment, consultancies, honoraria, stock ownership or options, expert testimony, grants or patents received or pending, or royalties.

No writing assistance was utilized in the production of this manuscript.

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