Molecular mechanisms of multiple drug resistance in clinical isolates of Mycobacterium tuberculosis.

Abstract

The molecular mechanisms of resistance to streptomycin, rifampin, and isoniazid in 53 Mycobacterium tuberculosis clinical isolates were examined. Twenty-five of 44 streptomycin-resistant strains had mutations in the rpsL gene and 5 of these had rrs gene perturbations. The region of the rpoB gene that is associated with resistance to rifampin was altered in… (More)

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