No abstract available
MeSH terms
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Animals
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Antibody Formation / immunology
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DNA, Viral / genetics
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Disease Outbreaks / statistics & numerical data
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Genetic Drift
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Humans
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Immunity, Cellular / immunology
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Immunity, Mucosal / immunology
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Influenza A virus / pathogenicity
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Influenza A virus / physiology
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Influenza A virus / ultrastructure
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Influenza B virus / pathogenicity
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Influenza B virus / physiology
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Influenza B virus / ultrastructure
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Influenza, Human / epidemiology
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Influenza, Human / immunology
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Influenza, Human / transmission
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Influenza, Human / veterinary
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Influenza, Human / virology*
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Molecular Epidemiology
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Respiratory Mucosa / immunology
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Virulence Factors
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Virus Replication / physiology
Substances
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DNA, Viral
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Virulence Factors