1. Department of Animal Pathology, Infectious Diseases and Epidemiology, Veterinary Faculty of Zaragoza , 50013 , Zaragoza , Spain
2. Department of Food and Agriculture, Area of Biochemistry and Molecular Biology, University of La Rioja , 26006 , Logroño , Spain
3. Microbiology Service, Hospital Miguel Servet, IIS Aragón, Universidad de Zaragoza , 50009 , Zaragoza , Spain