The transmissible agents that cause the disease in both cattle and humans are abnormal protein particles called "prions." Prions are not like bacteria or virusesthat cause other infectious diseases; rather, they are considered infectious abnormal proteins that can "induce abnormal folding of specific ...
It's important to understand the differences between variantCJDand another form of CJD, called classic or sporadic CJD. Classic CJD has no known cause and occurs each year at a rate of one to two cases per million people throughout the world, including the U.S. and countries where mad co...