No abstract available
MeSH terms
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Animals
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Humans
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Influenza A Virus, H1N1 Subtype / isolation & purification*
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Orthomyxoviridae Infections / transmission
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Orthomyxoviridae Infections / veterinary*
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Orthomyxoviridae Infections / virology
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Swine
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Swine Diseases / transmission
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Swine Diseases / virology*