INFECTIOUS diseases and vital statistics.
D001699:Biometry; D003141:Communicable Diseases / Q000453:epidemiology* / Q000706:statistics & numerical data*; D006801:Humans; D007251:Influenza, Human / Q000453:epidemiology* / Q000706:statistics & numerical data*; D012899:Smallpox / Q000453:epidemiology* / Q000706:statistics & numerical data*; D012901:Variola virus; D014798:Vital Statistics
COMMUNICABLE DISEASES/epidemiology and statistics; INFLUENZA/epidemiology and statistics; SMALLPOX/epidemiology and statistics; VITAL STATISTICS