1. SALUVET, Animal Health Department, Faculty of Veterinary Sciences, Complutense University of Madrid, Madrid, Spain
2. Department of Animal Medicine and Surgery, Faculty of Veterinary Sciences, Complutense University of Madrid, Madrid, Spain
3. Departamento de Patología Animal. Facultad de Veterinaria C/Miguel Servet 177, Zaragoza, Spain
4. Instituto de Ganadería de Montaña (CSIC-Universidad de León), León, Spain
5. Institute of Parasitology, Vetsuisse Faculty, University of Bern, Berne, Switzerland
6. Center for Emerging and Reemerging Infectious Diseases (CERID), Division of Allergy and Infectious Diseases, Department of Medicine, University of Washington, Seattle, Washington, USA