1. Institute of Veterinary Pathology Freie Universität Berlin Berlin Germany
2. Berlin‐Brandenburg State Laboratory, Frankfurt (Oder) Frankfurt Germany
3. Department for Diagnostic Investigation of Epizootics State Office for Agriculture, Food Safety and Fishery Mecklenburg‐Vorpommern Rostock Germany
4. Institute of Diagnostic Virology Friedrich‐Loeffler‐Institut, Greifswald – Isle of Riems Greifswald Germany
5. Stralsund Zoological Garden Stralsund Germany
6. Perleberg Zoological Garden Perleberg Germany
7. Veterinary Practice Pausin, Schönwalde im Glien Germany
8. Department of Experimental Animal Facilities and Biorisk Management Friedrich‐Loeffler‐Institut, Greifswald – Isle of Riems Greifswald Germany