Multicentre study of nitrate reductase assay for rapid detection of rifampicin-resistant M. tuberculosis Ghent University
SETTING: Four regional laboratories belonging to the Mycobacteria Reference Laboratory of Sao Paulo State, Brazil.OBJECTIVE: To evaluate the nitrate reductase assay (NRA) for rifampicin (RMP) susceptibility testing of Mycobacterium tuberculosis directly from clinical sputum samples of patients with pulmonary tuberculosis (TB).DESIGN: Performance of the NRA for detection of M. tuberculosis susceptibility to RMP was evaluated with 210 clinical ...