Dr. Andrew Koh and Team (IMAGE) UT Southwestern Medical Center Caption Research assistant Laura Coughlin, seated, Dr. Andrew Koh, and Dr. Tiffany Simms-Waldrep use an anaerobic chamber as part of a study investigating how the gut's bacteria defense system fights off Candida albicans infection. Credit UT Southwestern 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.