No abstract available
MeSH terms
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Animal Migration
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Animals
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China
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Ducks / virology*
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Epidemiological Monitoring / veterinary*
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Feces / virology
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Genetic Markers
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Influenza A virus / genetics*
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Influenza A virus / isolation & purification*
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Influenza A virus / pathogenicity
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Influenza in Birds / epidemiology
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Lakes
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Phylogeny
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Viral Proteins / genetics
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Wetlands
Substances
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Genetic Markers
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Viral Proteins