One of a number of progressive neurodegenerative disorders in animals and humans caused by similar uncharacterized agents that produce spongiform changes in the brain. Specific examples of transmissible spongiform encephalopathies include: In animals: scrapie, which affects sheep and goats; bovine spongiform encephalopathy (BSE), also called mad co [..]

The broader class of severe, fatal diseases of neural tissue which are transmitted by proteinaceous infections particles known as prions. Included in this class are Chronic Wasting Disease (elk, deer and bison), scrapie (sheep), variant Creutzfeld-Jacob Disease (humans), and Bovine Spongiform Encephalopathy (“mad cow disease”) of cattle.

A group of genetic, infectious, or sporadic degenerative Human and Animal Nervous System Disorders associated with abnormal Prions. These Diseases are characterized by conversion of the normal prion p [..]

A group of transmissible infections of the nervous system caused by a prion, including CJD.