Prion Diseases = Transmissible Spongiform Encephalopathies (TSE). Prion – Pro tinacious and in fectious a mis-folded protein autocatalytic self-propagating. genetic, sporadic, transmitted all prion diseases affect neural tissue all are incurable and fatal all mammals are susceptible
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Prion – Protinacious and infectious
nerve and immune cell
– b-pleated sheet-rich
plaques of aggregated PrPSc and vacuolization in brain
Transmission – oral – Ex. sheep cow
Inedible materials go to rendering
Low temperature fat removal
Fat Steam strip
Dried = Meat and Bone Meal (MBM)
Used for feed
Thalamus of white tail deer with CWD
Amyloid plaques in paraffin-embedded tissueCongo red-stained amyloid plaques
Dr. Kurt VerCauteren
Governor Granholm signed an executive order creating a task force to address the threat of CWD in Michigan's deer and elk populations
Includes 5 voting members appointed by the Governor
Directors of the MDA, Community Health, DEQ, DNR, State Police, and Transportation = non-voting members of the task force
Source: Michigan Department of Natural ResourcesLANSING - The Michigan departments of Agriculture (MDA) and Natural Resources (DNR) today confirmed the state's first case of Chronic Wasting Disease (CWD) in a three-year old white-tailed deer from a privately owned cervid (POC) facility in Kent County. The state has quarantined all POC facilities, prohibiting the movement of all - dead or alive - privately-owned deer, elk or moose. Officials do not yet know how the deer may have contracted the disease. To date, there is no evidence that CWD presents a risk to humans.
Source: The Grand Rapids PressStatewide, 1,095 deer have been tested, with 964 testing clean and 131 awaiting results. More than 300 wild Kent County deer have been tested and found to be clear of chronic wasting disease after the highly contagious disorder was found in one northern Kent County farm-raised deer in August.
Approximately $1 million spent on testing