What do scientists really know about the causes of BSE and CJD?
Georgina Ferry investigates.
Producer Paula McGrath. Repeated Tuesday at 8.00pm. E MAIL: scirad@bbc.co.uk
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What do scientists really know about the causes of BSE and CJD?
Georgina Ferry investigates.
Producer Paula McGrath. Repeated Tuesday at 8.00pm. E MAIL: scirad@bbc.co.uk