date:Dec 17, 2012
pontaneous genetic mutation in the 13-year-old cow.
But the results suggested the animal would have been unlikely to go on to develop the disease had it not died of other causes, the Brazilian agriculture ministry said, adding the simple presence of the protein, called a prion, is considered an atypical case of BSE.
Japan imported only heat-treated beef from Brazil as it cannot bring in fresh beef from the South American nation, which has reported foot-and-mouth disease.