You may be right about the US Mad Cow disease outbreak, but they specifically eliminated that possibility here (middle of the article): The head of a research

You may be right about the US Mad Cow disease outbreak, but they specifically eliminated that possibility here (middle of the article): The head of a research group on the subject, neurologist Alier Marrero of Moncton's Dr. Georges-L.-Dumont University Hospital Centre, said in an interview: These are patients who have clinical features that correspond to prion diseases, of which Creutzfeldt-Jakob disease is one, but show no evidence of having Creutzfeldt-Jakob disease or any other form of prion disease.