Fetal Gut Immunity (image) University of Pittsburgh Share Print E-Mail 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. 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.