1. Clinical Unit of Equine Internal Medicine, Department for Companion Animals and Horses University of Veterinary Medicine Vienna Vienna Austria
2. Department for Animal Breeding, Nutrition and Laboratory Animal Science University of Veterinary Medicine Budapest Hungary
3. Hungarian Academy of Sciences—Szent Istvan University (MTA‐SZIE) Large Animal Clinical Research Group Üllő Dóra major Hungary
4. EPIA, UMR 0346, Epidemiologie des maladies animales et zoonotiques, INRAE, VetAgro Sup University of Lyon Marcy l'Etoile France
5. School of Equine and Veterinary Physiotherapy Writtle University College Chelmsford UK
6. Department of Medicine and Epidemiology, School of Veterinary Medicine University of California Davis California USA
7. Department of Molecular and Medical Virology, Faculty of Medicine Ruhr University Bochum Bochum Germany
8. Baker Institute for Animal Health Cornell University College of Veterinary Medicine Ithaca New York USA