box Navigate to: Summary- Stanley B. Prusiner Press release Award ceremony speech Contents: Introduction » Prions – novel infectious agents differing from all other known pathogenic agents » Prions infect animals and humans » From Dr Jekyll to Mr Hyde » Different prions affect different regions of the brain Prion disease arise in three different ways » These pages are based on material from the 1997 Physiology or Medicine Nobel Poster. Credits and references for the poster » Go to the top of the page