1. Department of Veterinary Population Medicine, College of Veterinary Medicine University of Minnesota St. Paul Minnesota
2. Swine Vet Center St. Peter Minnesota
3. Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Unit Porcine Health Management Ghent University Merelbeke Belgium
4. IRTA, Centre de Recerca en Sanitat Animal (CReSA, IRTA‐UAB) Campus de la Universitat Autonoma de Barcelona Bellaterra Spain
5. Departamento de Patología Animal, Facultad de Agronomía y Veterinaria Universidad Nacional de Río Cuarto Río Cuarto Argentina
6. Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine Ghent University Merelbeke Belgium
7. Department de Sanitat i Anatomia Animals, Facultat de Veterinària UAB Bellaterra Spain
8. UAB, Centre de Recerca en Sanitat Animal (CReSA, IRTA‐UAB) Campus de la Universitat Autónoma de Barcelona Bellaterra Spain