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Creutzfeldt-Jakob disease is the name for the human version of Mad Cow disease, caused by a troublesome improperly folded prion. Mad Cow Disease (Bovine Spongiform Encephalopathy, or BSE) can cause humans to become diseased, but that is very uncommon.
These 'spongy-brain' diseases are caused by prions, which are essentially nothing more than strands of mis-folded proteins that, during normal



