No abstract available
MeSH terms
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Animals
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Cattle
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Cattle Diseases / epidemiology*
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Cattle Diseases / virology
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Horse Diseases / epidemiology*
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Horse Diseases / virology
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Horses
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Seroepidemiologic Studies
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Spain / epidemiology
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West Nile Fever / epidemiology
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West Nile Fever / veterinary*
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West Nile virus / isolation & purification*