This research was funded by Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) /INCT; grant number - 421703/2017-2.; BACKGROUND: Few studies in routine settings have confirmed the high accuracy of the Xpert MTB/RIF assay for detecting rifampicin resistance (RR) and the first-line probe assay (FL-LPA) for detecting both RR and isoniazid resistance (INHR). METHODS: The performance of Xpert MTB/R...