No abstract available
MeSH terms
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Aged
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Disease Outbreaks*
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Disease Transmission, Infectious
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Homes for the Aged*
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Humans
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Influenza Vaccines / administration & dosage
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Influenza, Human / epidemiology*
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Influenza, Human / prevention & control
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Influenza, Human / transmission
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Nursing Homes
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Retrospective Studies
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Risk Factors
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Wales / epidemiology