Prion Illustration 
Computer graphic showing the replication and spread of prions in cells.
http://www.rkm.com.au/BSEDeadly Conformations-Protein Misfolding in Prion Disease 
Research article on prions.
http://www.sciencedigest.org/499.HTM
eMedicine - Kuru : Article by Paul A Janson, MD 
A fatal neurologic disease that is restricted to the highlands of New Guinea, where it has infected the Fore (pronounced for-ay), a tribe of remote highland natives.
http://www.emedicine.com/med/topic1248.htm