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Published on: September 5, 2017
Drug resistance among TB cases and its clinical implications
1New Delhi Tuberculosis Centre, New Delhi, Delhi 110002, India.
Abstract:
The emergence of M. tuberculosis strains resistant to at least, Isoniazid (INH) and Rifampicin (RIF), the two most potent drugs of first-line anti-TB therapy is termed multidrug drug-resistant TB (MDR-TB). This is a cause of concern to TB Control Programmes worldwide. When MDR-TB strains become resistant to the major second-line drugs, one of the fluouroquinolones and one of the three injectable drugs (Amikacin, Kanamycin and Capreomycin), it is defined as extensively drug resistant TB.(1,2) MDR-TB is a manmade, costly and deadly problem. Rapid diagnosis of MDR-TB is essential for the prompt initiation of effective second-line therapy to improve treatment outcome and limit transmission of the disease.
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