No abstract available
MeSH terms
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Adolescent
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Adult
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Aged
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Antigens, Viral / analysis
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Child
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Child, Preschool
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Gammainfluenzavirus / immunology
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Gammainfluenzavirus / isolation & purification
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Hemagglutination Tests
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Humans
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Infant
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Infant, Newborn
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Influenza, Human / epidemiology*
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Influenza, Human / prevention & control
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Influenza, Human / virology
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Italy / epidemiology
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Middle Aged
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Orthomyxoviridae / immunology
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Orthomyxoviridae / isolation & purification
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Population Surveillance
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Seasons