1. Grace and Sienna Period 1

2. Mad cow disease is also known as bovine spongiform encephalopathy, or BSE. Mad Cow Disease is an illness in cows that affects the nervous system, causing the cow to act abnormally, or mad. This disease causes the brain to waste away and become spongy. WHAT IS MAD COW DISEASE

3. Only cows can get BSE, but it’s possible for humans to develop a fatal strain of it(variant Creutzfeldt- Jakob disease (vCJD) vCJD is caused by eating the nerve tissue of an infected cow. WHO CAN GET MAD COW DISEASE

4. Experts are not sure what causes mad cow disease or vCJD. The theory is that infected proteins called prions, they change from a healthy prion to a harmful prion for unknown reasons. WHAT CAUSES MAD COW DISEASE

5. http://www.fda.gov/AnimalVeterinary/ResourcesforYou/AnimalHealthLiteracy/ucm136222.htm SOURCES