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DNA tests show first US mad cow comes from Canada
www.chinaview.cn 2004-01-07 06:34:46

    WASHINGTON, Jan. 6 (Xinhuanet) -- The first cow in the United States found to be infected with mad cow disease did come from neighboring Canada, US agriculture officials said Tuesday, citing genetic testing results.

    "We now have DNA evidence that allows us to verify with a high degree of certainty that the BSE positive cow found in the state of Washington originated from a dairy farm in Alberta, Canada," Dr.Ron DeHaven, chief veterinarian of the US Department of Agriculture, told reporters.

    US Agriculture Secretary Ann Veneman announced on Dec. 23, 2003,that a single Holstein dairy cow living in a farm in the state ofWashington was tested positive to mad cow disease, formally known as Bovine Spongiform Encephalopathy (BSE).

    Shortly after the confirmation of the case, US investigators traced the diseased cow to Canada, which reported a case of mad cow disease in May last year. Authorities in Canada have said thatit is premature to come to a conclusion.

    In addition to tracing the sources of the Holstein cow, the US government has decided to kill 450 quarantined calves from a Washington state herd that includes the offspring of the diseased animal which was slaughtered on Dec. 9, 2003, The Washington Post reported Tuesday. Enditem

    

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