1. Department of Veterinary Sciences, University of Messina, Polo Universitario Annunziata, 98168 Messina, Italy
2. University School for Advanced Studies IUSS Pavia, Piazza della Vittoria, 27100 Pavia, Italy
3. Department of Human Pathology of Adult and Evolutive Age “Gaetano Barresi”, Section of Pathology, University of Messina, 98125 Messina, Italy
4. Department of Veterinary Prevention, Provincial Health Authority of Catania, 95030 Catania, Italy
5. Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Polo Universitario Papardo, 98166 Messina, Italy