1. Department of Veterinary Sciences, University of Messina, 98168 Messina, ME, Italy
2. CVSG (Clinica Veterinaria San Giorgio), Via Vecchia Pentimele, 63, 89121 Reggio Calabria, RC, Italy
3. Ospedale Veterinario San Francesco Trevisovet s.r.l., Strada Feltrina 29, 31038 Castagnole, TV, Italy
4. Institute Zooprofilattico Sperimentale of Sicily, Via G. Marinuzzi, 3, 90129 Palermo, PA, Italy