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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1997-9-18
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pubmed:abstractText |
The antimicrobial resistance patterns and plasmid profiles of Salmonella typhi isolates from sporadic cases (n = 33) and an outbreak (n = 48) were compared. Of 28 sporadic drug-resistant isolates, 24 (85.7%) were multiply resistant. The predominant antibiotic resistance pattern was TeCmSmSxTAp, which was also the most common pattern of the outbreak isolates. 13 drug-resistant strains isolated before the outbreak (46.4%) were able to transfer the whole resistance pattern or part of it to Escherichia coli K 12 by conjugation. Although 20 of the sporadic strains contained plasmid DNA, transferable R plasmids were only detected in 13 (65%) of them. Among the outbreak strains, the rate of R plasmid transfer was 92.3%, with only the TeCmSmSxTAp pattern transferred. Plasmid profiling and Hind III endonuclease digestion of plasmid DNA identified a 91.2 megadaltons (Mda) plasmid that was recovered from most of the outbreak isolates and from 4 strains collected before the outbreak. This plasmid coded for TeCmSmSxtAp and transferred the pattern of resistance in toto. The results indicate multidrug-resistant S. typhi as a potential cause of infection in the region.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:issn |
0036-5548
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
29
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
265-9
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:9255887-Disease Outbreaks,
pubmed-meshheading:9255887-Drug Resistance, Microbial,
pubmed-meshheading:9255887-Drug Resistance, Multiple,
pubmed-meshheading:9255887-Humans,
pubmed-meshheading:9255887-Iran,
pubmed-meshheading:9255887-Plasmids,
pubmed-meshheading:9255887-Salmonella typhi,
pubmed-meshheading:9255887-Serotyping,
pubmed-meshheading:9255887-Typhoid Fever
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pubmed:year |
1997
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pubmed:articleTitle |
Antimicrobial resistance pattern and plasmid profile of Salmonella typhi isolated from an outbreak in Tehran province.
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pubmed:affiliation |
Molecular Microbiology Unit, Pasteur Institute of Iran, Tehran, Islamic Republic of Iran.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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