Figure 2From: Mouse-adapted scrapie strains 139A and ME7 overcome species barrier to induce experimental scrapie in hamsters and changed their pathogenic featuresMorphological assays of SAFs in the hamsters' brains of three different scrapie strains in TEM. (A) agent 263 K. (B) agent 139A-ha. (C) agent ME7-ha. (D) SAF in the brain homogenates infected with agent 263 K stained by immune colloidal gold technique with PrP specific mAb 3 F4.Back to article page