Origin of Mad Cow Disease May Have Been Identified by Scientists
New questions raised about U.S. beef safety
CBC News Indepth: Mad Cow
Introduction in Cattle Diseases and Prevention Measures - Wikifarmer
Tennessee man diagnosed with human form of 'mad cow' disease: What you should know about Creutzfeldt-Jakob disease - ABC News
Mad Cow Disease: Improvements in the Animal Feed Ban and Other Regulatory Areas Would Strengthen U.S. Prevention Efforts : Dyckman, Lawrence J., Lansburgh, Erin: Amazon.it: Libri