Mycobacterium tuberculosis having resistance to rifampicin, isoniazid, and pyrazinamide is described as -
Ans. is 'b' i.e., Multi drug resistant tuberculosis * Mycobacterium tuberculosis having resistance to rifampicin, isoniazid, and pyrazinamide falls in the category of Multidrug resistant tuberculosis (MDR-tb) as it shows resistance to two most effective first line drugs of tuberculosis i.e. isoniazid and rifampicin.Definitions fo drug-resistant tuberculosis* Drug-resistant tuberculosis: tuberculosis bcaused by an isolate of Mycobacterium tuberculosis that is resistant to at least 1 of the first-line antituberculosis drugs: isoniazid, rifampin, ethambutol, pyrazinamide, or streptomycin* Monoresistance: resistance to 1 antituberculosis medication.* Multidrug-resistant tuberculosis: tuberculosis caused by an isolate of M tuberculosis that is resistant to the 2 most effective first-line drugs-isoniazid rifampin-and possibly other antituberculosis drugs.* Extensively drug-resistant tuberculosis: multidrug-resistant tuberculosis that is also resistant to the most effective second-line drugs, fluoro-quinolones, and at least 1 of the 3 injectable second-line drugs used to treat tuberculosis (amikacin, kanamycin, or capreomycin) and, possibly, to other antituberculosis drugs.
Drug resistant tuberculosis
Multi drug resistant tuberculosis
Extremely drug resistant tuberculosis
None of the above
Infection