Microscopic Examination of Brain Tissues of Prion-Infected Animals (image) Case Western Reserve University Share Print E-Mail Caption (Left) Staining shows spongiform degeneration. (Right) Staining shows intense misfolded prion protein. Credit Case Western Reserve University School of Medicine Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.