[Epidemiology of typhoid fever; evolution and present state of endemicity].
D005075:Biological Evolution; D001699:Biometry; D014435:Typhoid Fever / Q000453:epidemiology* / Q000706:statistics & numerical data*
TYPHOID FEVER/epidemiology and statistics
Aporte a la epidemiologia de la fiebre tifoidea. III. Evolución y estado actual de la endemia.