1. Evaluation of the BACTEC MGIT 960 system and the resazurin microtiter assay for susceptibility testing of Mycobacterium tuberculosis to second-line drugs.
- Author
-
Gallo JF, Pinhata JMW, Saraceni CP, and de Oliveira RS
- Subjects
- Automation, Laboratory, Humans, Microbial Sensitivity Tests instrumentation, Tuberculosis, Multidrug-Resistant microbiology, Antitubercular Agents pharmacology, Microbial Sensitivity Tests methods, Mycobacterium tuberculosis drug effects, Oxazines metabolism, Xanthenes metabolism
- Abstract
Drug resistance in tuberculosis is a major threat to public health and control of the disease worldwide. Given the need of a rapid and accurate detection of Mycobacterium tuberculosis resistance to second-line drugs, this study evaluated the performance of the BACTEC MGIT 960 for second-line, drug susceptibility testing in comparison with the resazurin microtiter assay (REMA), in order to implement the automated methodology in the diagnostic routine of a reference laboratory. Drug susceptibility testing (DST) for second-line drugs of 151 MDR M. tuberculosis clinical isolates was performed by both BACTEC MGIT 960 and REMA, and a panel of 26 M. tuberculosis reference isolates from a proficiency test was tested by the BACTEC MGIT 960. DST for second-line drugs by the BACTEC MGIT 960 system was more rapid, highly reproducible and showed 100% of proficiency. After these results, this methodology was successfully implemented in our diagnostic routine for all MDR-TB patients., (Copyright © 2017 Elsevier B.V. All rights reserved.)
- Published
- 2017
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