Researchers cloning cattle resistant to BSE

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At least three teams are working to create cloned cattle that will be resistant to Bovine Spongiform Encephalopathy (BSE). Each team seems to be taking a different approach to the problem. For example, Korean scientists are focusing on animals genetically engineered to produce prion proteins resistant to conversion to a pathogen. Meanwhile, researchers at Virginia Tech have attempted to remove the DNA that codes for prion proteins — the cloned calves will then be unable to be infected with the disease.

However, it is uncertain what side-effects, if any, will result from these measures. It’s also unclear how the market will adapt to this technology, since the U.S. Food and Drug Administration has not approved cloned animals for human consumption. But, researchers maintain that these measures offer a new means of overcoming disease.


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