No abstract available
Publication types
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Comment
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Comparative Study
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Letter
MeSH terms
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Adult
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Age Distribution
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Aged
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Chile / epidemiology
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Cross Infection / epidemiology*
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Cross Infection / virology
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Female
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Humans
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Infection Control / methods
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Influenza A Virus, H1N1 Subtype / isolation & purification
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Influenza A virus / isolation & purification
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Influenza, Human / classification*
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Influenza, Human / epidemiology*
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Influenza, Human / prevention & control
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Male
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Middle Aged
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Pandemics
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Polymerase Chain Reaction