BSE is thought to have arisen from cattle fed with a high-protein diet, obtained from remnants of butchered animals and modified by some new methods developed in the early 1980s. This practice allows the accumulation of prions over many generations, and is now disallowed by modern cattle farming practices. To date (2001) there has not been a case of [BSE in the United States,]? nor a case of new-variant Creutzfeldt-Jakob Disease except among those who have travelled to Europe. |
BSE is thought to have arisen from cattle fed with a high-protein diet, obtained from remnants of butchered animals and modified by some new methods developed in the early 1980s. This practice allows the accumulation of prions over many generations, and is now disallowed by modern cattle farming practices. To date (2001) there has not been a case of BSE in the United States, nor a case of new-variant Creutzfeldt-Jakob Disease except among those who have travelled to Europe. |