Special Sub-Topic: Mad Cow Disease
|When was the first case of Bovine Spongiform Encephalopathy, or BSE, diagnosed in the United States?|
December 2003. The cow was diagnosed in Washington State, but was purchased from a Canadian farm in 2001.
|Can cow's milk transmit BSE?|
n. Even if a cow happens to be infected with BSE, its milk can't transmit the disease to humans.
|In which of the following parts of a cow has the BSE agent not been found?|
Muscle tissue. The BSE agent has also never been found in milk.
|Humans can't get BSE from eating contaminated beef. However, a human eating BSE-contaminated beef might get a disease similar to which of these diseases?|
Creutzfeldt-Jacob Disease. Creutzfeld-Jacob Disease (CJD) is a fatal, slowly progressive infection. People who have CJD generally show symptoms of dementia, and they sometimes have muscle spasms. It is believed that a variant of CJD (vCJD) may develop in a human who has eaten BSE-contaminated meat. There have been over 150 reported cases of this variant form of CJD around the world.
|The majority of reported BSE cases have occurred in which country?|
The United Kingdom. Over 97% of all BSE cases have been found in the United Kingdom!
|What is the incubation period for BSE among cattle?|
2 to 8 years. In humans, vCJD (see question 4) has an incubation period of around 13 years.
|Where did the first suspected case of BSE occur?|
France. The first suspected case was in 1914. The animal was never actually diagnosed, but showed symptoms.
|Which part of cattle does BSE affect?|
The nervous system. BSE is a progressive disease that affects the cow's nervous system. All cattle who become infected with BSE will die from it. Unfortunately, there is no treatment or vaccine.
|Which of the following is not a typical symptom of BSE?|
Weight gain. Other symptoms include weight loss and unusual posture.
|As of April 2004, there is a test used to detect BSE in a live animal.|
f. A veterinarian can detect BSE by examining brain tissue from a dead animal, or by looking for an abnormal protein in the body. However, there is being work done on creating a new test for a live animal. I did most of my research at www.fda.gov, and thank you mugaboo for the corrections. Hope you enjoyed this quiz!
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