No abstract available
MeSH terms
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Adolescent
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Adult
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Child
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Child, Preschool
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Disease Outbreaks
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Female
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Hong Kong
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Humans
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Influenza A Virus, H1N1 Subtype
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Influenza A virus / isolation & purification
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Influenza, Human* / epidemiology*
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Influenza, Human* / microbiology
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Male