1. National Veterinary Research Institute, P.M.B.01, Vom 930103, Nigeria
2. Division of Bioresources, Hokkaido University International Institute for Zoonosis Control, Kita 20 Nishi 10, Kita-ku, Hokkaido 001-0020, Japan
3. Department of Veterinary, Medicine, Faculty of Veterinary Medicine, Ahmadu Bello University, Zaria 810211, Nigeria
4. International Collaboration Unit, Hokkaido University International Institute for Zoonosis Control, Kita 20 Nishi 10, Kita-ku, Hokkaido 001-0020, Japan
5. Division of Research Support, Hokkaido University Institute for Vaccine Research and Development, Kita 20 Nishi 10, Kita-ku, Hokkaido 001-0020, Japan