1. Department of Viral Infections, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan
2. Laboratory of Viral Genomics, Pathogen Genomics Center, National Institute of Infectious Diseases, Musashimurayama, Tokyo, Japan
3. Center of Human Evolution Modeling Research, Primate Research Institute, Kyoto University, 41-2 Kanrin, Inuyama, Aichi 484-8506, Japan
4. Department of Microbiology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
5. Laboratory of Evolutional Virology, Institute for Virus Research, Kyoto University, 53 Shogoin Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan