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- Season 0 2001-05-31
- Season 1 1996-04-21
- Season 2 1997-10-02
- Season 3 1998-10-01
- Season 4 1999-10-06
- Season 5 2000-09-12
- Season 6 2001-05-21
- Season 7 2002-10-12
- Season 8 2003-04-01
- Season 9 2004-08-14
- Season 10 2005-04-27
- Season 11 2006-07-19
- Season 12 2007-09-26
- Season 13 2008-09-12
- Season 14 2010-07-16
Season 14 Episode
- Season 3 Without a Trace
- Season 3 Knot for Everyone
- Season 3 The Talking Skull
- Season 3 Foreign Body
- Season 3 Deadly Delivery
- Season 3 'Sim'ilar Circumstances
- Season 3 Grave Evidence
- Season 3 Deadly Formula
- Season 3 Beaten by a Hair
- Season 3 Crime Seen
- Season 3 Speck of Evidence
- Season 3 Broken Bond
- Season 3 Out of the Ashes
Forensic Files - Season 3 Episode 4 Foreign Body
7.90 23 minutes 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.
