1. OIE; National and EU Reference Laboratory for BSE and Scrapie; Department of Pathology; APHA Weybridge; Addlestone Surrey UK
2. CEA - National Reference Laboratory for Transmissible Spongiform Encephalopathies; OIE Reference Laboratories for BSE and Scrapie; Unit of Biostatistics, Epidemiology and Risk Analysis; Istituto Zooprofilattico Sperimentale del Piemonte; Turin Italy
3. CEA - National Reference Laboratory for Transmissible Spongiform Encephalopathies; OIE Reference Laboratories for BSE and Scrapie; Neuropathology Laboratory; Istituto Zooprofilattico Sperimentale del Piemonte; Turin Italy
4. NeuroCenter; OIE and National Reference Laboratories for BSE and Scrapie; Division of Neurological Sciences; Vetsuisse Faculty; Bern Switzerland