https://www.vie-publique.fr/rapport/24866-rapport-de-la-commission-denquete-sur-les-conditions-dutilisation-des http://www.senat.fr/rap/r00-321-1/r00-321-1.html 2001 false France French technical report public health encephalopathy, bovine spongiform france encephalopathy, bovine spongiform creutzfeldt-jakob syndrome animal nutritional physiological phenomena