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anses

French Agency for Food, Environmental and Occupational Health & Safety

Transmissible Spongiform Encephalopathies

Transmissible spongiform encephalopathies—prion diseases—are human and animal diseases affecting the central nervous system and more specifically the brain and spinal cord. Some can be transmitted through food. They are caused by unconventional transmissible agents known as prions, particularly resistant to conventional inactivation processes. These diseases are always fatal and there is currently no treatment.