Phenotype versus genotype discordant rifampicin susceptibility testing in tuberculosis: implications for a diagnostic accuracy
Mehmood Qadir,
Rani Faryal,
Muhammad Tahir Khan
et al.
Abstract:The World Health Organization recommends culture-based techniques as the gold standard for rifampicin-resistant (RR) tuberculosis. However, as rapid molecular assays are rolled out, discordance in resistance has been observed. The current study compared 516 clinical isolates on Lowenstein–Jenson (LJ) and Mycobacteria Growth Indicator Tube (MGIT) drug susceptibility testings (DSTs) with
rpoB
sequencing. The discordance rate was higher in MGIT DST (24%) compared to LJ (9.4%). We report di… Show more
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