1. Department of Health Sciences, University “Magna Græcia” of Catanzaro, Campus Universitario “S. Venuta”, Viale “S. Venuta”, I-88100 Catanzaro, Italy
2. Department of Veterinary Medicine and Animal Production, University “Federico II” of Naples, Via Delpino 1, 80100 Napoli, Italy
3. Istituto Zooprofilattico Sperimentale del Mezzogiorno, Viale Crotone, Catanzaro 88100, Italy