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Video encyclopedia

06/10/1997 New type of infectious agent

4:23

Prions - Incurable Brain Dissolving Proteins

4:53

Prions: The Real Zombie-Makers

13:24

Prion Disease - Susan Lindquist (MIT/HHMI)

American biologist Stanley Prusiner discovered prions. Prion is an infection agent composed of normal protein. However, this protein is folded in a way which causes disease. This abnormal way of folding can be transmitted to other molecules of the same protein and spread. Examples of prion diseases are mad cow disease or kuru.