A matched caseCcontrol study (95 cases and 220 controls) was designed to study risk factors for atypical scrapie in sheep in France. and metabolic factors. gene, which codes for prion protein (PrP), modify the risk for this disease (gene confer susceptibility to sheep, a purely genetic origin is unlikely but a confounding effect could occur.… Continue reading A matched caseCcontrol study (95 cases and 220 controls) was designed