Institute for Animal Breeding and Genetics.|Research Center for Emerging Infections and Zoonoses (RIZ).|Research Center for Emerging Infections and Zoonoses (RIZ).|Department of Infectious Diseases, Institute of Virology, University of Veterinary Medicine Hannover, Hannover, Germany.|Department of Infectious Diseases, Institute of Virology, University of Veterinary Medicine Hannover, Hannover, Germany.|Research Center for Emerging Infections and Zoonoses (RIZ).|Institute for Animal Breeding and Genetics.