Clinical evaluation of TRCReady M.TB for rapid automated detection of M. tuberculosis complex in respiratory samples

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S E T T ING: Timely diagnosis of tuberculosis (TB) is essential for effectively controlling and managing the disease. Although international guidelines recommend acid-fast bacilli staining and culture as the 'gold standard', new molecular methods are available to safely and rapidly identify positive samples. OBJECTIVE: To evaluate the performance of the newer and fully automated version of a molecular assay for rRNA amplification (TRCReadyw M.TB) on 1028 respiratory samples collected from 378 patients for its possible use as a reliable screening method. Results were evaluated using culture as the reference test. RESULTS : Of four diagnostic protocols employed, best results were obtained when TRCReady M.TB was used together with microscopy on the first respiratory sample, followed by microscopy alone on a second one. The sensitivity and specificity were respectively 97% and 100%, with a turnaround time of 24 h. We propose a possible laboratory algorithm for rapid identification of patients with TB. CONCLUSIONS : TRCReady offers the advantages of full automation and avoidance of cross-contamination. As such, it should be considered as a more economical option for TB screening than other commercial assays that are currently available.

Original languageEnglish
Pages (from-to)260-264
Number of pages5
JournalInternational Journal of Tuberculosis and Lung Disease
Issue number2
Publication statusPublished - Jan 1 2019



  • Molecular assay
  • Rapid diagnosis
  • Tuberculosis

ASJC Scopus subject areas

  • Pulmonary and Respiratory Medicine
  • Infectious Diseases

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