No abstract available
Publication types
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Historical Article
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Research Support, Non-U.S. Gov't
MeSH terms
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Brazil / epidemiology
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Health Priorities / history*
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History, 19th Century
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History, 20th Century
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Humans
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Immunization Programs / history
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International Cooperation / history
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Public Health / history*
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Smallpox / epidemiology
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Smallpox / history*
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Smallpox / prevention & control
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Smallpox Vaccine / history
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Vaccination / history