Border Patrol (IMAGE) University of Pennsylvania School of Medicine Caption This is a color-enhanced tissue section from colon of a C. rodentium-infected mouse that displays intestinal inflammation characterized by inflammatory cell infiltrates and crypt elongation. Credit Gregory F. Sonnenberg, University of Pennsylvania School of Medicine Usage Restrictions None License Licensed content 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.