No abstract available
Publication types
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Comment
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Letter
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Research Support, Non-U.S. Gov't
MeSH terms
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Antibodies, Viral / immunology
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Humans
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Immunity, Active*
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Smallpox / immunology*
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Smallpox / prevention & control
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Smallpox / transmission
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Smallpox Vaccine / immunology*
Substances
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Antibodies, Viral
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Smallpox Vaccine