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From: TSS ()
Potential 'mad cow' case under investigation The department is conducting further tests and is sending a brain tissue sample to the internationally recognized laboratory in Weybridge, England, the official said. Two other cases of mad cow disease have been confirmed in the United States. One was confirmed last month in a Texas cow that died in November. The other was in a Canadian-born cow discovered in December 2003 in Washington state. In the latest case, the cow died on the farm where it lived, and a private veterinarian removed brain tissue for sampling, the official said. Because the tissue was preserved so that it could travel from a remote location, only one type of testing, immunohistochemistry, can be done, the official said. Initial rapid screening and Western blot testing can't be done on the sample, the official said. Copyright 2005 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.
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