First-line anti-tubercular drug resistance of mycobacterial strains from re-treatment cases that were smear-positive at 4 th month onwards under the Revised National Tuberculosis Control Program
Background: Programmatic management of drug-resistant TB (PMDT) under the RNTCP is being implemented in West Bengal in a phased manner since 2011.During the initial years MDR-TB cases were identified based on criteria A.This study examines the first line anti-tubercular drug resistance pattern of mycobacteria redken shades 9gi cultured from sputum