No abstract available
Publication types
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Letter
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Research Support, N.I.H., Extramural
MeSH terms
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Antibodies, Viral / blood
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Antibodies, Viral / immunology
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Cross Reactions / immunology
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Humans
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Influenza A virus / classification
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Influenza A virus / immunology*
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Influenza, Human / epidemiology*
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New York City / epidemiology
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Pandemics*
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Seroepidemiologic Studies