1. Institute of Virology Department of Infectious Diseases University of Veterinary Medicine Hannover Hannover Germany
2. Research Center for Emerging Infections and Zoonoses Hannover Germany
3. Institute for Terrestrial and Aquatic Wildlife Research University of Veterinary Medicine Hannover Hannover Germany
4. Institute of Microbiology Department of Infectious Diseases University of Veterinary Medicine Hannover Hannover Germany
5. Department of Veterinary Medicine National Taiwan University Taipei Taiwan