No abstract available
MeSH terms
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Cross Infection / epidemiology*
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Cross Infection / prevention & control
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Disease Outbreaks / prevention & control*
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Disease Outbreaks / statistics & numerical data
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Germany / epidemiology
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Hospital Administration
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Humans
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Incidence
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Influenza A Virus, H1N1 Subtype*
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Influenza, Human / epidemiology*
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Influenza, Human / prevention & control
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Population Surveillance / methods
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Portugal / epidemiology
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Practice Guidelines as Topic*
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Risk Assessment / methods
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Risk Factors
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Societies, Medical / standards