Fetal Gut Immunity (IMAGE) University of Pittsburgh Caption Microscopic image showing the presence of memory T cells in the fetal small intestine (left) and large intestine (right). Credit Cell Press/Konnikova Lab Usage Restrictions Use with credit. 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.