1. Division of Microbiology, Osaka Institute of Public Health, Japan
2. Department of Bacteriology, Toyama Institute of Health, Japan
3. Microbiological Testing and Research Division, Yokohama City Institute of Public Health, Japan
4. Department of Infectious Diseases, Gifu Prefectural Research Institute for Health and Environmental Sciences, Japan
5. Public Health and Environment Center, Hiroshima Prefectural Technology Research Institute, Japan
6. Department of Microbiology, Kagawa Prefectural Research Institute for Environmental Sciences and Public Health, Japan
7. Department of Microbiology, Ehime Prefectural Institute of Public Health and Environmental Science, Japan
8. Department of Bacteriology II, National Institute of Infectious Diseases, Japan