1. Department of Virology II National Institute of Infectious Diseases Tokyo Japan
2. Department of Pathology National Institute of Infectious Diseases Tokyo Japan
3. Center for Research, Diagnostics and Vaccine Development Taiwan Centers for Disease Control Taipei City Taiwan
4. Department of Molecular Virology and Microbiology Baylor College of Medicine Houston TX USA
5. Research Institute for Microbial Diseases Osaka University Suita Japan