1. Department of Molecular Immunology, Helmholtz Centre for Infection Research, Braunschweig, Germany
2. Central Facility for Microscopy, Helmholtz Centre for Infection Research, Braunschweig, Germany
3. Mouse-Pathology Service Unit, Helmholtz Centre for Infection Research, Braunschweig, Germany
4. Symbio Gruppe GmbH & Co KG, Herborn, Germany
5. Institute of Medical Microbiology and Hygiene, Dresden University of Technology, Dresden, Germany
6. Institute of Immunology, Medical School Hannover, Hannover, Germany