1. Bundeswehr Institute of Microbiology, German National Consultant Laboratory for TBEV, Munich, Germany
2. Institute of Zoology, Parasitology, University of Hohenheim, Stuttgart, Germany
3. Division of Infectious Diseases, Department of Medicine II, University of Freiburg Medical Center and Faculty of Medicine, Freiburg, Germany
4. Praxis Dr. J. Borde/Gesundheitszentrum Oberkirch, Oberkirch, Germany