Abstract
Multidrug resistance to streptomycin, sulfonamide, and tetracycline (AMR-SSuT) was identified in 156 of 171 isolates of Escherichia coli O157:H7 of phage types 23, 45, and 67. In 154 AMR-SSuT isolates, resistance was encoded by strA, strB, sul2, and tet(B), which in 59 of 63 tested isolates were found clustered together on the chromosome within the cdiA locus.
MeSH terms
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Bacteriophage Typing
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DNA, Bacterial / chemistry
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DNA, Bacterial / genetics
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Drug Resistance, Multiple, Bacterial*
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Escherichia coli O157 / classification
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Escherichia coli O157 / drug effects*
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Escherichia coli O157 / genetics*
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Genes, Bacterial
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Molecular Sequence Data
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Multigene Family*
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Sequence Analysis, DNA
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Streptomycin / pharmacology*
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Sulfonamides / pharmacology*
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Tetracycline / pharmacology*
Substances
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DNA, Bacterial
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Sulfonamides
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Tetracycline
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Streptomycin