No abstract available
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Adolescent
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Antibodies, Bacterial / blood*
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Child
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Child, Preschool
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Female
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Humans
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Infant
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Male
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Rickettsia typhi / immunology*
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Seroepidemiologic Studies
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Typhus, Endemic Flea-Borne / epidemiology*
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United States / epidemiology