date:Jan 22, 2014
an case. The other three U.S. cases occurred in 2003, 2004 and 2006.
Another 19 BSE cases have occurred in Canada, the first being a 1993 case in a cow imported from the U.K.
In the U.S. and other countries regulating BSE, cattle feed can no longer contain the meat of other ruminant animals. USDA runs a surveillance program for BSE, and slaughterhouses are required to remove the brains and spinal cords from all carcasses.