Institution: | Cerioli, R. Brivio, C. Tittarelli, G. Orilli,A. Lavazza( 1. Lombardy and Emilia-Romagna Experimental Zooprophylactic Institute (IZSLER) "B. Ubertini", Brescia 25124, Italy 2. Veterinarian Practitioner S.A.T.A., Lombardy Region, Milan 20159, Italy 3. Department of Animal Pathology, Hygiene and Veterinary Public Health Section of Veterinary Pathology, Veterinary Faculty University of Milan, Milan 20133, Italy) |