Abstract
Phenotypic and genetic characteristics of 21 strains of Salmonella serotype Heidelberg isolated in the years 1999-2003 from different sources in Italy were studied. Susceptibility patterns, plasmid analysis, and PFGE were used as epidemiological markers. Although non-homogeneous drug resistance patterns and plasmid profiles had been detected, PFGE patterns suggest the hypothesis of a nationwide clonal spread of this serotype associated with poultry.
MeSH terms
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Animals
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Chickens / microbiology
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Child
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DNA, Bacterial / classification
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DNA, Bacterial / genetics
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Drug Resistance, Multiple, Bacterial
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Electrophoresis, Gel, Pulsed-Field / methods
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Genotype
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Humans
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Italy / epidemiology
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Male
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Microbial Sensitivity Tests / methods
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Molecular Epidemiology / classification
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Molecular Epidemiology / methods
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Phenotype
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Population Surveillance / methods
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Salmonella Food Poisoning / epidemiology
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Salmonella Infections / classification
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Salmonella Infections / epidemiology*
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Salmonella Infections / genetics*
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Salmonella Infections / metabolism
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Salmonella enterica / classification*
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Salmonella enterica / drug effects
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Salmonella enterica / genetics
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Salmonella enterica / isolation & purification*
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Serotyping