1. Department of Infectious Diseases; Kobe Institute of Health; 4-6-5, Minatojima-Nakamachi Chuo-ku, Kobe 650-0046
2. Department of Virology 1; National Institute of Infectious Diseases; Toyama, Shinjuku Tokyo 162-8640
3. Department of International Health; Kobe University Graduate School of Health Sciences; Suma-ku Kobe 615-0124
4. Medical Genetics Research Center; Nara Medical University; Kashihara Nara 634-8521
5. Soara Medical; Shinagawa-ku; Tokyo 141-0022
6. Divison of Protein Regulation Research; Medical Research Institute; Kanazawa Medical University; Ishikawa 920-0293
7. Division of Molecular Oncology and Virology; Medical Research Institute; Kanazawa Medical University; Ishikawa 920-0293 Japan