1. Department of Medicine and Epidemiology School of Veterinary Medicine University of California 944, Garrod Dr Davis CA 95616 USA
2. Dermatology, Parasitology and Mycology Unit Ecole Nationale Vétérinaire Agroalimentaire et de l'Alimentation Nantes‐Atlantique: ONIRIS Route de Gachet 44307 Nantes France
3. Department of Medicine and Clinical Biology of Small Animals Faculty of Veterinary Medicine Ghent University Salisburylaan 133 9820 Merelbeke Belgium
4. Department of Surgery and Anaesthesiology of Domestic Animals Faculty of Veterinary Medicine Ghent University Salisburylaan 133 9820 Merelbeke Belgium
5. Department of Equine Sciences Faculty of Veterinary Medicine Utrecht University Yalelaan 112 3584 CM Utrecht The Netherlands