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Int J Tuberc Lung Dis. 2004 Aug;8(8):1032-5.

Molecular characterisation of streptomycin-resistant Mycobacterium tuberculosis strains isolated in Poland.

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1
Centre for Medical Biology, Polish Academy of Sciences, Lodz, Poland.

Abstract

Primary drug resistance of Mycobacterium tuberculosis strains in Poland increased two-fold between 1997 and 2000. Among 3705 drug-resistant strains investigated in 2000, 169 were resistant to streptomycin alone or in combination with isoniazid, rifampicin and/or ethambutol. The molecular basis of streptomycin resistance for 88 (52%) of these strains in comparison with 15 susceptible controls was determined. The most prevalent mutation was the single substitution Lys43Arg in the rpsL gene, found in 30.7% of the strains analysed. However, as many as 51% of the strains investigated carried no mutation in the rpsL or rrs genes. The multiple mutations present in two Beijing family strains were also identified.

PMID:
15305490
[Indexed for MEDLINE]

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