Multi drug resistant tuberculosis is defined as resistance to?: (A) INH and Pyrizinamide, (B) INH and Rifampicin, (C) Rifampicin and Pyrizinamide, (D) Resistance to all first line drugs
Answer is B. Ans. is 'b' i.e., INH and Rifampicin o Multi-Drug Resistant Tuberculosis is defined by resistance to INH and Rifampicin.o 'Multi-Drug Resistant Tuberculosis (MDR-TB) is defined as disease caused by strain of M Tuberculosis that is resistant to both Isoniazid (ONH) and Rifampicin-the most efficacious of the first line Anti-TB drugs ' - Harrison