1. Clinic for Ruminants with Ambulatory and Herd Health Services at the Centre for Clinical Veterinary Medicine, Ludwig-Maximilians University Munich, Oberschleissheim, Germany
2. Department for Population Medicine and Diagnostic Services, Cornell University, Ithaca, NY, USA
3. Immunology Unit, University for Veterinary Medicine, Hannover, Germany
4. Institute of Veterinary Pathology at the Centre for Clinical Veterinary Medicine, Ludwig-Maximilians University Munich, Oberschleissheim, Germany
5. Division of Structural Biochemistry, Research Centre Borstel, Leibniz-Centre for Medicine and Biosciences, Airway Research Center North (ARCN); German Centre for Lung Research (DZL), Borstel, Germany
6. INRA, UMR1282 Infectiologie et Santé Publique (ISP), Nouzilly, France