1. UMR INRA ENVT 1225, Interactions Hôtes Agents Pathogènes; Ecole Nationale Vétérinaire de Toulouse; France
2. Animal and Plant Health Agency; Sutton Bonington, Loughborough UK
3. Centro de Investigación en Sanidad Animal (CISA/INIA); Valdeolmos- Madrid Spain
4. National Creutzfeldt-Jakob Disease Research & Surveillance Unit; University of Edinburgh; UK