1. Molecular and Cellular Engineering Group, University of Freiburg, Institute of Biology II, Freiburg, Germany
2. The Hartmut Hoffmann-Berling International Graduate School of Molecular and Cellular Biology (HBIGS), University of Heidelberg, Heidelberg, Germany
3. Section of Clinical Microbiology, Department of Medical Sciences, Uppsala University, Uppsala, Sweden
4. Department of Medical Biochemistry and Microbiology, Zoonosis Science Center, Uppsala University, Uppsala, Sweden