Forensic Files - Season 3 - Eps 4: Foreign Body
Between 1986 and 1989, a disease swept through British cattle herds, which came to be known as Mad Cow disease. Scientists began to suspect that this was somehow related to some human illness. A California neurologist said both humans and animals were suffering from a mutated prion. When defective prions are transmitted from an infected host to a new host, they convert any normal prions they come across into copies of themselves so it is possible for a mutated prion to be transmitted from a cow to a person by eating beef. Dr. Stanley B. Prusiner received a Nobel prize for his work with prion.
About Forensic Files

Title: Forensic Files
First Air Date: 1996-04-21
Last Air Date: 2011-06-17
Status: Ended
Rating: 7.9/10 (from 71 votes)
Language: EN
Seasons: 15
Total Episodes: 400
Network: TLC truTV Court TV
Genres: Crime, Documentary
Production Companies: Medstar Television
Synopsis
Real crimes, disease outbreaks and accidents around the world are solved by experts using scientific laboratory analysis which helps them find previously undetectable evidence. Brilliant scientific work helps convict the guilty and free the innocent.
Cast

Peter Thomas
Self - Narrator (voice)