1. VISAVET Centre and Animal Health Department; Complutense University of Madrid; Madrid Spain
2. CEI Campus Moncloa; UCM-UPM; Madrid Spain
3. Department of Agricultural Economics; E.T.S Agronomics Engineering; Technical University of Madrid; Madrid Spain
4. Department of Medicine and Epidemiology; Center for Animal Disease Modeling and Surveillance (CADMS); University of California; Davis CA USA