Scrapie Disease Information |
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Sheep Health and Management Studies
National Animal Health and Monitoring System (NAHMS)
Scrapie Disease
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Narrated Video The Clinical Signs of Scrapie Total Runtime 7:41 Windows Media Player |
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Hopping Gait Video Total Runtime 14 Seconds Windows Media Player |
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Video of Infected Sheep Total Runtime 9 Minutes Windows Media Player |
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Gait Problems Video Total Runtime 15 Seconds Difficulty Eating Video Total Runtime 14 Seconds Nibbling Video Total Runtime 42 Seconds |
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| Other Clinical Signs Videos are available on the VLA web site. | ||||
Scrapie is a fatal, degenerative disease affecting the central nervous system of sheep and goats. It is among a number of diseases classified as transmissible spongiform encephalopathies (TSE). Infected flocks that contain a high percentage of susceptible animals can experience significant production losses. Over a period of several years the number of infected animals increases, and the age at onset of clinical signs decreases making these flocks economically unviable. Animals sold from infected flocks spread scrapie to other flocks.
The presence of scrapie in the United States also prevents the export of breeding stock, semen, and embryos to many other countries. TSEs are the subject of increased attention and concern because of the discovery of bovine spongiform encephalopathy (BSE) in cattle, the link between BSE and variant Creutzfeldt-Jakob disease (vCJD) in people, and feline spongiform encephalopathy (FSE) in cats in Europe. See Factsheet for more detail.
Scrapie Ovine Slaughter Surveiliance (SOSS) (PDF 369KB) - The objective of the SOSS was to estimate the national and regional prevalence of scrapie in mature sheep. The study was released in March 2004.
Genetic Resistance to Scrapie (PDF 16KB) - Basic information on genetics and scrapie resistance and information on how APHIS is using genetic testing to help eradicate scrapie.
Producer/Owner Information -- “Eradicate Scrapie!” is a national scrapie educational initiative that provides information for producers and owners of sheep on scrapie and the new identification requirements for sheep and goats provided by the National Institute for Animal Agriculture.
Approved Laboratories for Scrapie Testing
Scrapie "Free" Flock Certification Program
Information for Zoos and Registered Exhibitors (PDF 29KB)
PowerPoint Presentation on the Use of Genetics to Control Scrapie
Notification to Buyers of Animals from Infected and Source Flocks
Scrapie Eradication Uniform Methods and Rules (PDF 159KB)
Scrapie in Sheep and Goats; Interstate Movement Restrictions and Indemnity Program; Final Rule (TXT) (PDF 261KB)
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