1. Bacteriology, Department of Infectious Diseases, Faculty of Veterinary Medicine; University of Liège; Sart-Tilman; Bât 43a; B-4000; Liège; Belgium
2. Laboratory of Veterinary Public Health, Department of Veterinary Science, Faculty of Agriculture; University of Miyazaki; 1-1 Gakuen Kibanadai-nishi; Miyazaki; 889-2192; Japan