1. VISAVET Health Surveillance Centre; Universidad Complutense Madrid; Madrid Spain
2. Departamento de Sanidad Animal; Facultad de Veterinaria; Universidad Complutense Madrid; Madrid Spain
3. IZS della Sardegna; Centro di Sorveglianza Epidemiologica; Cagliari Italy
4. Department of Medicine and Epidemiology; Center for Animal Disease Modeling and Surveillance (CADMS); University of California; Davis CA USA
5. IZS dell'Umbria et delle Marche; Perugia Italy