NR AFBL
AU Hamir,A.N.; Clark,W.W.; Sutton,D.L.; Miller,J.M.; Stack,M.J.; Chaplin,M.J.; Jenny,A.L.
TI Resistance of domestic cats to a US sheep scrapie agent by intracerebral route
QU Journal of Veterinary Diagnostic Investigation 2002 Sep; 14(5): 444-5
PT journal article
AB Feline spongiform encephalopathy (FSE) is thought to have resulted from consumption of food contaminated with bovine spongiform encephalopathy and the latter is believed to result from the consumption of food contaminated with scrapie. However, no direct experimental documentation exists to indicate that the scrapie agent is capable of amplifying in cats, and, therefore, crossing the species barrier. During 1979, 6 cats ranging in age from 3.5 to 18 months were intracerebrally inoculated with sheep scrapie (inoculum G-639-PP) and were observed for an extended period. Inoculated cats did not develop neurologic disease, and microscopic lesions of spongiform encephalopathy were not evident. Immunohistochemistry and Western blot techniques failed to detect the abnormal form of prion protein (PrPres). These results indicate that the sheep scrapie agent (G-639-PP) used in this study was not capable of amplifying in cats and therefore was unable to cross the species barrier to produce FSE.
AD National Animal Disease Center, ARS, USDA, Ames, IA 50010, USA
SP englisch
PO USA