1. Department of Bacteriology II, National Institute of Infectious Diseases, Tokyo, Japan
2. Department of Pediatrics, St Marianna University School of Medicine, Kawasaki, Japan
3. R & D Center for Diagnostic Reagents, Denka Seiken, Niigata, Japan
4. Center for Diagnostics and Vaccine Development, Centers for Disease Control, Taipei, Taiwan, ROC
5. School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, Australia
6. Present address: Division of Microbiology and Molecular Cell Biology, Nihon Pharmaceutical University, Saitama, Japan
7. Graduate School of Infection Control Sciences, Kitasato University, Tokyo, Japan