Fabia Scarampella1, Giordana Zanna2, Andrea Peano3. 1. Studio Dermatologico Veterinario, via Sismondi 62, 20133, Milano, Italy. 2. Istituto Veterinario di Novara, S.P.9 Granozzo con Monticello, 28060, Novara, Italy. 3. Department of Veterinary Sciences, Parasitology Section, University of Turin, Via Verdi 8, 10124, Torino, Italy.