*Keiichi Taniguchi^1,2, Takeshi Noshi¹, Shinya Shano¹, Takashi Hashimoto¹, Naoko Kurihara¹, Shinya Omoto¹, Yoshinori Ando¹, Akihiko Sato^1,3, Masatomo Rokushima¹, Takao Shishido¹, Akira Naito¹, Keita Matsuno^2,4, Masatoshi Okamatsu², Scott Krauss⁵, Richard J Webby⁵, Yoshihiro Sakoda^2,4, Hiroshi Kida^3,4 (1. Shionogi & Co., Ltd., Osaka, Japan., 2. Department of Disease Control, Faculty of Veterinary Medicine, Hokkaido University, Japan., 3. Research Center for Zoonosis Control, Hokkaido University, Japan., 4. Global Station for Zoonosis Control, Global Institution for Collaborative Research and Education, Hokkaido University, Japan., 5. Department of Infectious Diseases, St. Jude Children's Research Hospital, the US.)

*Irina Chon¹, Reiko Saito¹, Hidekazu Osada¹, Isamu Sato², Takashi Kawashima², Tadashi Saito², Naoki Kodo², Yasuhiko Ono², Yasushi Shimada², Yogo Shobugawa¹ (1. Division of International Health (Public Health) Graduate School of Medical and Dental Sciences Niigata University, 2. Japanese Influenza Surveillance Group)

*Emi Takashita¹, Hiroko Morita¹, Rie Ogawa¹, Seiichiro Fujisaki¹, Masayuki Shirakura¹, Hideka Miura¹, Kazuya Nakamura¹, Noriko Kishida¹, Tomoko Kuwahara¹, Hiromi Sugawara¹, Aya Sato¹, Miki Akimoto¹, Keiko Mitamura², Takashi Abe³, Masataka Ichikawa⁴, Masahiko Yamazaki⁵, Shinji Watanabe¹, Takato Odagiri¹, Hideki Hasegawa¹, The Influenza Virus Surveillance Group of Japan⁶ (1. National Institute of Infectious Diseases, 2. Eiju General Hospital, 3. Abe Children’s Clinic, 4. Ichikawa Children’s Clinic, 5. Zama Children’s Clinic, 6. The Influenza Virus Surveillance Group of Japan)

*Tomoko Honda¹, Fumihiko Yasui¹, Daisuke Yamane¹, Keisuke Munekata¹, Makoto Saito¹, Kenzaburo Yamaji¹, Takahiro Sanada¹, Michinori Kohara¹ (1. Tokyo Metropolitan Institute of Medical Science)