Premium
Clinical signs, histopathology and genetics of experimental transmission of BSE and natural scrapie to sheep and goats
Author(s) -
Foster J. D.,
Parnham D.,
Chong A.,
Goldmann W.,
Hunter N.
Publication year - 2001
Publication title -
veterinary record
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.261
H-Index - 99
eISSN - 2042-7670
pISSN - 0042-4900
DOI - 10.1136/vr.148.6.165
Subject(s) - scrapie , histopathology , genotype , transmission (telecommunications) , incubation period , biology , disease , virology , clinical disease , veterinary medicine , pathology , medicine , gene , prion protein , incubation , genetics , biochemistry , electrical engineering , engineering
This paper compares the clinical signs, histopathology, detection of PrP Sc protein and PrP genetics of the transmission of BSE to sheep and goats, with the effects of the transmission of natural scrapie from a brain homogenate from a single sheep. After intracerebral and oral inoculations there were similarities in the clinical signs due to the two sources of infection, but there were differences in pathology at the end stage of disease and in the genotypes of the sheep which succumbed to the challenges. The incubation period of BSE was associated with the sheep PrP codon 171 genotype, but the natural scrapie source, despite inducing disease only in known susceptible genotypes, showed no clear association with PrP genotype.