1. Clinica per Animali Esotici; Centro Veterinario Specialistico; Via Sandro Giovannini 53 00145 Rome Italy
2. Dermatology Service; Centro Veterinario Specialistico; Via Sandro Giovannini 53 00145 Rome Italy
3. Institute for Veterinary Bacteriology; National Reference Center for Poultry and Rabbit Diseases (NRGK); University of Zurich; Winterthurerstrasse 270 8057 Zurich Switzerland
4. Faculty of Veterinary Medicine; University of Teramo; Piazza Aldo Moro 45 64100 Teramo Italy