1. Department of Parasitology, Faculty of Veterinary Medicine; University of Zaragoza; Zaragoza Spain
2. Instituto de Investigación en Recursos Cinegéticos IREC (CSIC-UCLM-JCCM); Ciudad Real Spain
3. Centre de Recerca en Sanitat Animal (CReSA), UAB-IRTA, Campus de la Universitat Autònoma de Barcelona; Bellaterra Spain
4. Department of Veterinary Pathobiology; Center for Veterinary Health Sciences, Oklahoma State University; Stillwater OK, USA