LIVING IN FLIGHT: JORDAN X LEVI'S Artist Julian Gaines on the evolving denim canvas. WAVEY DADA Wavey Dada skates his J's in New York City. SEASON OF HER 10 unique colorways for her to kick off the season.
Mad cow disease, or bovine spongiform encephalopathy (BSE), is a transmissible, slowly progressive, degenerative, and fatal disease affecting the central nervous system of adult cattle. The U.S. Department of Agriculture (USDA) has tested hundreds of thousands of cattle for BSE.
Caused by a deformed protein known as a prion, the disease attacks and destroys the brain and spinal cord in cattle. 10 Shocking Facts About Mad Cow Disease April 24, 2012. Onset is typically during middle age, which is characteristic of the long incubation periods most prion diseases show.