Abstract
Commentary on the paper by Beard et al (see page 20)
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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Hospitalization / statistics & numerical data*
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Hospitalization / trends
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Humans
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Influenza Vaccines
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Influenza, Human / epidemiology*
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Influenza, Human / prevention & control