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Communicable Diseases
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Communicable Diseases--United States--Statistics
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Communicable Diseases--epidemiology
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Communicable Diseases--epidemiology--United States
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Disease Notification
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Gastroenteritis
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Gastroenteritis--New York
Hepatitis A
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Mortality
Mortality--United States--Statistics
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Poliomyelitis
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Poliomyelitis--Alabama
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Poliomyelitis--California
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Poliomyelitis--Greenland
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Poliomyelitis--epidemiology
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Poliomyelitis--epidemiology--United States
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Psittacosis
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