1. Department of Veterinary Medicine and Animal Production, University of Naples Federico II, 80137 Naples, Italy
2. Veterinary Behaviorist, 81100 Caserta, Italy
3. Local Health Unit Rome 1, 00193 Rome, Italy
4. Local Health Unit Rome 4, 00053 Rome, Italy
5. CEINGE-Biotecnologie Avanzate Franco Salvatore, 80145 Naples, Italy