No abstract available
MeSH terms
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Adolescent
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Adult
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Age Factors
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Aged
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British Columbia / epidemiology
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Case-Control Studies
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Child
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Child, Preschool
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Female
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Humans
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Influenza A virus / immunology
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Influenza B virus / immunology
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Influenza Vaccines / therapeutic use*
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Influenza, Human / prevention & control*
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Influenza, Human / virology
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Male
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Middle Aged
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Pilot Projects
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Sentinel Surveillance