The end of kuru: 50 years of research into an extraordinary disease. The 3 central images, clockwise from the top left, are from John D. Mathews, Lucy M. Hamilton Reid and Michael P. Alpers. The outer images, clockwise from the top left, are from Richard W. Hornabrook, Jerome T. Whitfield, D. Carleton Gajdusek, Lucy M. Hamilton Reid, D. Carleton Gajdusek, D. Carleton Gajdusek, Elisabeth Beck, Igor Klatzo, Igor Klatzo (2 images), D. Carleton Gajdusek, D. Carleton Gajdusek, D. Carleton Gajdusek, D. Carleton Gajdusek (2 images) and Coralie Mathews.