D Crevat D Vandenbergh G Chappuis C Lecomte A Renard

pezhman mahmoodi department of pathobiology, faculty of veterinary medicine, shahid chamran university, ahvaz, ir iran masoud reza seyfi abad shapouri department of pathobiology, faculty of veterinary medicine, shahid chamran university, ahvaz, ir iran; department of pathobiology, faculty of veterinary medicine, shahid chamran university, ahvaz, ir iran. tel: +98-9161133247, fax: +98-6113360807 masoud ghorbanpour department of pathobiology, faculty of veterinary medicine, shahid chamran university, ahvaz, ir iran mohammad rahim haji hajikolaei department of clinical sciences, faculty of veterinary medicine, shahid chamran university, ahvaz, ir iran mohsen lotfi quality control management, razi vaccine and serum research institute, karaj, ir iran mahdi pourmahdi boroujeni department of food hygiene, faculty of veterinary medicine, shahid chamran university, ahvaz, ir iran