1. Institute of Medical Microbiology and Hygiene, Saarland University, Homburg, Germany
2. Department of Infectious Diseases, Unit 16 Mycotic and Parasitic Agents and Mycobacteria, Robert Koch-Institute, Berlin, Germany
3. Clinic of Operative Dentistry and Periodontology, Saarland University, Homburg, Germany
4. Department of Microbiology and Molecular Genetics, University of California Davis, Davis, USA
5. Experimental Physics, Saarland University, Saarbrücken, Germany
6. Max Planck School, Matter to Life, Heidelberg, Germany