| 11. | Like mad cow, scrapie can take years for symptoms to appear.
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| 12. | To date, 59 of those flocks have been cleared of scrapie.
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| 13. | Sheep can get scrapie, a condition similar to BSE.
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| 14. | Breeds such as Suffolk are more susceptible to scrapie than other breeds.
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| 15. | How could it be that mice without the gene become resistant to scrapie?
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| 16. | There's no evidence that sheep scrapie has been transmitted to humans.
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| 17. | Miller used the brain of a sheep infected with scrapie for a comparison.
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| 18. | The species barrier was an equally big hurdle for both BSE and scrapie.
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| 19. | Sheep can carry a similar brain disease called scrapie.
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| 20. | The promise of eliminating scrapie, producers say, is worth the trouble.
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