Figure 8: Patterns of histological changes in the cortex (A); hippocampus (B); hypothalamus (C); and thalamus (D) of scrapie-infected hamsters. Scale: 100 x percentage of image area covered by PrP (solid grey line) or vacuoles (broken black line); percentage of image area covered by gliosis (solid black line); number of vacuoles/digital image (broken grey line).