Nobel Prize for his discovery. Mad Cow Disease Pictures: illustration of prion replication and spread at the cellular level, by Russell Kightley Media. Rapid diagnostic testing used to check for the presence of prion diseases such as "mad cow disease" might fail to identify some highly infectious samples,. Prion: A disease-causing agent that is neither bacterial nor fungal nor viral and contains no genetic material. A prion is a protein that occurs Funny Bumper Stickers normally in. Britannica online encyclopedia article on prion: an abnormal form of a normally harmless protein

found in the brain that is responsible for a variety of. North American hunters could be at risk from eating deer and elk with chronic wasting disease. The existence of more than one agent

associated with prion disease Is it bad to take in