Performance of the GenoType MTBDRplus assay directly on sputum specimens from Brazilian patients with tuberculosis treatment failure or relapse

Rapid identification of drug resistance in clinical isolates of Mycobacterium tuberculosis is important in determining treatment for tuberculosis. The aim of this work was evaluate the performance of the GenoType MDRTBplus assay directly on sputum of patients who had treatment failure or relapse in a routine outpatient setting in southern Brazil.