Abigail B. Diack, Diane Ritchie, Matthew Bishop, Victoria Pinion, Jean-Philippe Brandel, Stephane Haik, Fabrizio Tagliavini, Cornelia Van Duijn, Ermias D. Belay, Pierluigi Gambetti, Lawrence B. Schonberger, Pedro Piccardo, Robert G. Will¹, and Jean C. Manson¹ 

Author affiliations: The Roslin Institute, Easter Bush, Scotland, UK (A.B. Diack, V. Pinion, J.C. Manson); University of Edinburgh, Edinburgh, Scotland, UK (D. Ritchie, M. Bishop, R.G. Will); Cellule Nationale de Référence des Maladies de Creutzfeldt-Jakob, Universite Pierre et Marie Curie-Paris 6, INSERM, and CNRS, Paris, France (J.-P. Brandel, S. Haik); Fdazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy (F. Tagliavini); Erasmus University Medical School, Rotterdam, the Netherlands (C. Van Duijn); Centers for Disease Control and Prevention, Atlanta, Georgia, USA (E.D. Belay, L.B. Schonberger); Case Western Reserve University, Cleveland, Ohio, USA (P. Gambetti); and Food and Drug Administration, Rockville, Maryland, USA (P. Piccardo)