Multi drug resistant tuberculosis is defined as resistance to?
INH and Pyrizinamide
INH and Rifampicin
Rifampicin and Pyrizinamide
Resistance to all first line drugs
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
Bacteriology