What are prions? Name one human diseases and cattle disease caused by prions.

Explanation

1. Prions are the causative agents for about a dozen fatal degenerative disorders of the central nervous system of humans and other animals.
2. For Eg : Creutzfeldt - Jacob Disease (CJD), Bovine Spongiform Encephalopathy (BSE) - commonly known as mad cow disease.
3. Discovered by Stanley B. Prusiner in the year 1982.