1. Institute of Virology, University of Veterinary Medicine, Hannover, Germany
2. Institute of Diagnostic Virology, Friedrich-Loeffler-Institute, Greifswald, Germany
3. Research Center for Emerging Infections and Zoonoses, University of Veterinary Medicine, Hannover, Germany
4. Institute of Pathology, University of Veterinary Medicine, Hannover, Germany
5. Institute for Terrestrial and Aquatic Wildlife Research, University of Veterinary Medicine, Hannover, Germany
6. Landeslabor Schleswig- Holstein, Neumünster, Germany