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Scrapie Disease

Scrapie Disease. Kory Nicholi Kwasow. Description. Chronic disease of central nervous system in sheep and occasionally goats Transmitted by an unclassified agent which is smaller than the smallest known viruses

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Scrapie Disease

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  1. Scrapie Disease Kory Nicholi Kwasow

  2. Description • Chronic disease of central nervous system in sheep and occasionally goats • Transmitted by an unclassified agent which is smaller than the smallest known viruses • Spread most likely through the placenta of a ewe to her young and also through the urine into open areas. • Called a Transmissible Spongiform Encephalopathy (TSE) which is a group of diseases affecting the brain and nervous system of animals

  3. History • Endemic in Great Britain for over 250 years • First case in United States; Michigan 1947 • As of July 2001 over 1000 flocks affected in U.S. Most of these are the Suffolk breed • Reports of scrapie are now throughout the world • Only two countries. New Zealand and Australia, have never reported any cases of scrapie

  4. Symptoms Takes a long time to develop as the brain becomes spongy Tremors Behavioral changes (temperament, rubbing body, easily startled) Can mimic signs of rabies Dry wool which will fall off

  5. Spread of Disease Biomedcentral.com

  6. Preventative Measures A test is now available which examines the lymphatic tissue from third eyelid. Great Britain has a anti-scrapie plan which educates and encourages the use of sheep and goats which are genetically more resistant to scrapies.

  7. References http://www.eradicatescrapie.org/About%20Scrapie/Fact%20Sheet.html http://www.fao.org/docrep/003/t0756e/T0756E06.htm http://www.biomedcentral.com/1746-6148/5/33

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