faculty (IMAGE) UT Southwestern Medical Center Caption Lora Hooper, Ph.D., Chair of Immunology, is one of 13 distinguished HHMI Investigators at UT Southwestern. The Hooper Lab investigates how resident intestinal bacteria influence the biology of humans and other mammalian hosts. Credit UT Southwestern Medical Center Usage Restrictions None License Original 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.