| 21. | Sheep that come down with scrapie wobble and incessantly bite and scratch themselves.
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| 22. | He decided to look for the scrapie agent.
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| 23. | It is similar to scrapie in sheep and Creutzfeldt-Jakob disease in humans.
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| 24. | Scrapie, mad cow and Creutzfeldt-Jakob disease are maladies of unknown cause.
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| 25. | In sheep the disease is known as scrapie.
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| 26. | And he is adamant that Britain's plans to eradicate scrapie could backfire.
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| 27. | Unlike mad cow, scrapie is not believed to pose a threat to humans.
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| 28. | But there are more than 20 strains of scrapie, and six of sCJD.
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| 29. | Sheep, too, can contract a prion disease, a disorder called scrapie.
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| 30. | Scrapie is an incurable type of spongiform enchephalopathy.
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