Picture composition: (IMAGE) University of Bonn Caption Prof. Dr. Mihai G. Netea from the Radboud university medical center and the LIMES Institute of the University of Bonn (left) and Prof. Dr. Andreas Schlitzer from the LIMES Institute of the University of Bonn (right). Credit © Prof. Netea/Universität 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.