1. Center for Emergency Preparedness and Response, National Institute of Infectious Diseases, Tokyo, Japan
2. Division of Bacteriology, Chiba Prefectural Institute of Public Health, Chiba, Japan
3. Department of Molecular Microbiology, Faculty of Life Sciences, Tokyo University of Agriculture, Tokyo, Japan
4. NODAI Genome Research Center, Tokyo University of Agriculture, Tokyo, Japan
5. Department of Molecular Infectiology, Graduate School of Medicine, Chiba University, Chiba, Japan
6. Laboratory of Animal Health, Department of Animal Science, Tokyo University of Agriculture, Kanagawa, Japan