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Volume 7, Number 1—February 2001

Perspective

Bovine Spongiform Encephalopathy and Variant Creutzfeldt-Jakob Disease: Background, Evolution, and Current Concerns

Paul Brown*Comments to Author , Robert G. Will†, Raymond Bradley‡, David M. Asher§, and Linda Detwiler¶
Author affiliations: *National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, USA; †National Creutzfeldt-Jakob Disease Surveillance Unit, Western General Hospital, Edinburgh, Scotland; ‡Central Veterinary Laboratory, New Haw, Addlestone, UK; §Center for Biologics Evaluation and Research, Food and Drug Administration, Rockville, Maryland, USA; ¶Animal and Plant Health Inspection Service, U.S. Department of Agriculture, Robbinsville, New Jersey, USA

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Figure

Figure. Time course of epidemic bovine spongiform encephalopathy in the United Kingdom, 1986-2000, with dates of major precautionary interventions. The mammalian ban on meat and bone meal in March 1996 extended a 1994 ban for farmed food animal species to include all mammalian species. SBO = specified bovine offals (brain, spinal cord, thymus, tonsil, spleen, and intestines from cattle >6 months of age); MBM = meat and bone meal (protein residue produced by rendering).

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