Mad cows and CJD.
D000293:Adolescent; D000328:Adult; D000818:Animals; D002417:Cattle; D007562:Creutzfeldt-Jakob Syndrome / Q000453:epidemiology / Q000821:virology*; D016643:Encephalopathy, Bovine Spongiform / Q000453:epidemiology / Q000635:transmission*; D006801:Humans; D011159:Population Surveillance; D006113:United Kingdom / Q000453:epidemiology