1. Laboratory of Farm Animal Production Medicine, Joint Faculty of Veterinary MedicineKagoshima UniversityKagoshima Japan
2. Laboratory of Animal Hygiene, Joint Faculty of Veterinary MedicineKagoshima UniversityKagoshima Japan
3. Laboratory of Animal Reproduction, Joint Faculty of Veterinary MedicineYamaguchi UniversityYamaguchi Japan
4. United Graduate School of Veterinary ScienceYamaguchi UniversityYamaguchi Japan
5. Matsuoka Research Institute for ScienceKoganei Tokyo Japan
6. Transboundary Animal Diseases Control and Research Center, Joint Faculty of Veterinary MedicineKagoshima UniversityKagoshima Japan
7. Vaxxinova Japan K.K.Tokyo Japan