No abstract available
Publication types
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Comparative Study
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Letter
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Research Support, Non-U.S. Gov't
MeSH terms
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Australasia / epidemiology
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Humans
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Influenza, Human / epidemiology
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Influenza, Human / virology*
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Orthomyxoviridae / genetics
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Orthomyxoviridae / isolation & purification
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Orthomyxoviridae / physiology*
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Seasons
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South Africa / epidemiology
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South America / epidemiology