1. Laboratory of Veterinary Parasitic Diseases; Interdisciplinary Graduate School of Medicine and Veterinary Medicine, University of Miyazaki; 1-1 Gakuen-Kibanadai-Nishi Miyazaki 889-2192 Japan
2. Laboratory of Veterinary Parasitic Diseases; Department of Veterinary Sciences; Faculty of Agriculture; University of Miyazaki; 1-1 Gakuen-Kibanadai-Nishi Miyazaki 889-2192 Japan
3. Shepherd Central Livestock Clinic; Kagoshima, 20901 Akasegawa Akune Kagoshima 889-1611 Japan
4. Yamagata Prefectural Federation of Agricultural Mutual Relief Association; Central Vet. Clinic Center; 286-1 Kitakawahara Nanaura Yamagata 990-2171 Japan
5. Center for Animal Disease Control, University of Miyazaki; 1-1 Gakuen-Kibanadai-Nishi Miyazaki 889-2192 Japan