Salmonella EM Image (image) University of California - Berkeley Share Print E-Mail Caption Shown is an image of Salmonella bacteria taken by an electron microscope. Researchers at UC Berkeley have turned this food-borne pathogen into an antiviral delivery agent. Credit Image by Sangwei Lu, UC Berkeley Usage Restrictions Must include credit with image. 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.