Figure 3From: Generalized cerebral atrophy seen on MRI in a naturally exposed animal model for creutzfeldt-jakob diseaseThe quantitative results of the study are displayed in this histogram. The 37 PrPSc positive sheep (red) have larger V/C ratios relative to 74 PrPSc negative sheep (yellow) and 6 normal controls (blue) as defined by immunohistochemistry. Nine of the 37 positive sheep showed clinical signs of scrapie (asterisks).Back to article page