[Spotted fever; epidemiologic comments in reference to Mexico].
D001699:Biometry; D008800:Mexico; D012282:Rickettsia Infections / Q000453:epidemiology* / Q000706:statistics & numerical data*; D017282:Tick-Borne Diseases
RICKETTSIAL DISEASES/epidemiology and statistics
Fiebre manchada; comentarios epidemiologicos relativos a Mexico.