1. Division of Global Epidemiology, Research Center for Zoonosis Control, Hokkaido University, Sapporo, Japan
2. Division of Collaboration and Education, Research Center for Zoonosis Control, Hokkaido University, Sapporo, Japan
3. Global Institution for Collaborative Research and Education, Hokkaido University, Sapporo, Japan
4. Administration Office, Research Center for Zoonosis Control, Hokkaido University, Sapporo, Japan
5. Department of Microbiology, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
6. Influenza Virus Research Center, National Institute of Infectious Diseases, Musashimurayama, Japan
7. School of Veterinary Medicine, the University of Zambia, Lusaka, Zambia