Another Role for Neurons (VIDEO) Harvard Medical School This video is under embargo. Please login to access this video. Caption New research by scientists at Harvard Medical School has found that nerves in the guts of mice do not merely sense the presence of Salmonella but actively protect against infection by this dangerous bacterium by deploying two lines of defense. Credit R Groleau, Harvard Medical School 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.