No abstract available
MeSH terms
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Abattoirs*
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Animals
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Data Collection
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Escherichia coli Infections / pathology
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Escherichia coli Infections / veterinary*
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Escherichia coli O157 / classification*
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Escherichia coli O157 / pathogenicity
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Prevalence
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Seroepidemiologic Studies
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Serotyping
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Sheep Diseases / microbiology*
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Shiga Toxin 2 / analysis*