The spread of influenza and encephalitis.
D001699:Biometry; D004660:Encephalitis / Q000453:epidemiology* / Q000706:statistics & numerical data*; D006801:Humans; D007251:Influenza, Human / Q000453:epidemiology* / Q000706:statistics & numerical data*
ENCEPHALITIS/epidemiology and statistics; INFLUENZA/epidemiology and statistics