Reflection in the protective screen: (IMAGE) University of Bonn Caption Prof. Dr. Tanja Schneider and her team from the Institute of Pharmaceutical Microbiology. Credit Photo: Gregor Hübl/Uni Bonn Usage Restrictions This image may be used together with the press release. 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.