kory nicholi kwasow. chronic disease of central nervous system in sheep and occasionally goats ...
TRANSCRIPT
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
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
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
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.