eed and fed to cattle" (Backgrounder.. 7). Bovine Spongiform Encepalopathy is a TSE, it is not curable and it not contagious from cow to cow. Many scientists have created theories on how the disease is formed and how it works.
             "In Britain, cattle feed, contaminated with sheep brain infected with the disease scrapie, is thought to have triggered the epidemic of "mad cow disease" or bovine spongiform encephalopathy, BSE" (Ryan 330). As said before there is no exact answer to how this disease came about or how it works. Many theories have been developed to explain this mysterious infectious agent.
             Some scientist believe that BSE is caused by slow-acting virus with unusual characteristics, while others suggest that the infectious agent is virino-abit of abnormal genetic material that somehow gets the animal's system to make a protective coating to prevent it from being destroyed (Agriculture 1).
             Some scientists don't believe that the disease is bacteria nor a regular virus. However they don't know precisely what triggers the disease and how it stays within the brain. Other scientist believe that BSE is caused by a mutated protein or prion in the brain (Ridgway 28). Hopefully some day scientists will be able to create an ideal method to how this disease works and prevent this disease from spreading. First we need to understand what a prion is and how it works.
             Proteins usually serve good purposes for an animals or humans. They are necessary for the daily life to occur. Also known as the building blocks of life. On the other hand, mutated proteins are harmful for the body and can cause death. "Each protein is made up of long chain amino acids. There are about twenty different common amino acids. They form various proteins, depending on which amino acids are linked together and in which order" (Ridgway 23). Prions initially occur in the small intestines and tonsils then transfer...