No abstract available
MeSH terms
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Animals
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Animals, Suckling
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Antigens, Bacterial / administration & dosage
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Bacterial Vaccines / administration & dosage*
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Escherichia coli / immunology*
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Escherichia coli Infections / prevention & control
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Escherichia coli Infections / veterinary*
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Female
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Mutation
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Swine
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Swine Diseases / prevention & control*
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Vaccines, Attenuated
Substances
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Antigens, Bacterial
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Bacterial Vaccines
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Vaccines, Attenuated