1. Department for Small Animals, College of Veterinary Medicine, University of Leipzig, Leipzig, Germany
2. Clinic of Small Animal Medicine, Ludwig Maximilian University of Munich, Munich, Germany
3. Institute for Infectious Diseases and Zoonoses, Ludwig Maximilian University of Munich, Munich, Germany
4. Clinic for Ruminants with Ambulatory and Herd Health Services, Ludwig Maximilian University of Munich, Oberschleissheim, Germany