No abstract available
MeSH terms
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Adolescent
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Adult
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Aged
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Child
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Child, Preschool
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Disease Outbreaks / statistics & numerical data*
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Europe / epidemiology
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Hospitalization / statistics & numerical data
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Humans
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Infant
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Influenza A Virus, H1N1 Subtype
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Influenza A Virus, H3N2 Subtype / classification
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Influenza A Virus, H3N2 Subtype / genetics*
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Influenza A Virus, H3N2 Subtype / isolation & purification
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Influenza B virus
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Influenza, Human / diagnosis
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Influenza, Human / epidemiology*
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Influenza, Human / virology
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Middle Aged
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Phylogeny
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Seasons*
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Sentinel Surveillance*
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Young Adult