Now, following a three-month investigation, those findings have been confirmed.
On Friday, the U.S. Department of Agriculture reported that cow found in April was an isolated case ― no other cases of BSE were found.
"The results of this thorough investigation confirmed that at no time was the U.S. food supply or human health at risk, and that the United States' long-standing system of interlocking safeguards against BSE continues to be effective," said John Clifford, USDA's chief veterinary officer.
The 10-year-old dairy cow had been delivered to a rendering facility in Hanford, Calif., and was killed prior to the BSE being detected by random testing.
