This is a group of rare diseases in which a transmissible agent known as 'prion protein' accumulates in the brain. This causes dementia and neurological symptoms including unsteadiness and jerky movements.
Different prion diseases occur in humans and animals. One of these, Creutzfeldt-Jakob disease (CJD), has been identified for some time in a small number of humans. More recently, a new form of CJD, known as variant CJD, has been identified.
What is Prion Disease? from the Alzheimer's Society, U.K.What is Creutzfeldt-Jakob disease (CJD)?
Creutzfeldt-Jakob disease (CJD) is the best known of a group of diseases called prion disease, which affect a form of protein found in the central nervous s
http://www.alzheimers.org.uk/site/scripts/document...
