M
Masatoshi Okamatsu
Researcher at Hokkaido University
Publications - 132
Citations - 4072
Masatoshi Okamatsu is an academic researcher from Hokkaido University. The author has contributed to research in topics: Influenza A virus subtype H5N1 & Virus. The author has an hindex of 26, co-authored 130 publications receiving 3631 citations. Previous affiliations of Masatoshi Okamatsu include National Agriculture and Food Research Organization.
Papers
More filters
Journal ArticleDOI
In vitro and in vivo characterization of new swine-origin H1N1 influenza viruses
Yasushi Itoh,Kyoko Shinya,Maki Kiso,Tokiko Watanabe,Yoshihiro Sakoda,Masato Hatta,Yukiko Muramoto,Daisuke Tamura,Yuko Sakai-Tagawa,Takeshi Noda,Saori Sakabe,Masaki Imai,Yasuko Hatta,Shinji Watanabe,Chengjun Li,Shinya Yamada,Ken Fujii,Shin Murakami,Hirotaka Imai,Satoshi Kakugawa,Mutsumi Ito,Ryo Takano,Kiyoko Iwatsuki-Horimoto,Masayuki Shimojima,Taisuke Horimoto,Hideo Goto,Kei Takahashi,Akiko Makino,Hirohito Ishigaki,Misako Nakayama,Masatoshi Okamatsu,Kazuo Takahashi,David Warshauer,Peter A. Shult,Reiko Saito,Hiroshi Suzuki,Yousuke Furuta,Makoto Yamashita,Keiko Mitamura,Kunio Nakano,Morio Nakamura,Rebecca A. Brockman-Schneider,Hiroshi Mitamura,Masahiko Yamazaki,Norio Sugaya,M. Suresh,Makoto Ozawa,Makoto Ozawa,Gabriele Neumann,James E. Gern,Hiroshi Kida,Kazumasa Ogasawara,Yoshihiro Kawaoka +52 more
TL;DR: It is shown that CA04 is sensitive to approved and experimental antiviral drugs, suggesting that these compounds could function as a first line of defence against the recently declared S-OIV pandemic.
Journal ArticleDOI
Characterization of H7N9 influenza A viruses isolated from humans
Tokiko Watanabe,Maki Kiso,Satoshi Fukuyama,Noriko Nakajima,Masaki Imai,Shinya Yamada,Shin Murakami,Seiya Yamayoshi,Kiyoko Iwatsuki-Horimoto,Yoshihiro Sakoda,Emi Takashita,Ryan McBride,Takeshi Noda,Masato Hatta,Hirotaka Imai,Dongming Zhao,Noriko Kishida,Masayuki Shirakura,Robert P. de Vries,Shintaro Shichinohe,Masatoshi Okamatsu,Tomokazu Tamura,Yuriko Tomita,Naomi Fujimoto,Kazue Goto,Hiroaki Katsura,Eiryo Kawakami,Izumi Ishikawa,Shinji Watanabe,Mutsumi Ito,Yuko Sakai-Tagawa,Yukihiko Sugita,Ryuta Uraki,Reina Yamaji,Amie J. Eisfeld,Gongxun Zhong,Shufang Fan,Jihui Ping,Eileen A. Maher,Anthony Hanson,Yuko Uchida,Takehiko Saito,Makoto Ozawa,Gabriele Neumann,Hiroshi Kida,Takato Odagiri,James C. Paulson,Hideki Hasegawa,Masato Tashiro,Yoshihiro Kawaoka +49 more
TL;DR: The robust replicative ability in mice, ferrets and nonhuman primates and the limited transmissibility in ferrets of Anhui/1 suggest that A(H7N9) viruses have pandemic potential.
Journal ArticleDOI
In vitro characterization of baloxavir acid, a first-in-class cap-dependent endonuclease inhibitor of the influenza virus polymerase PA subunit.
Takeshi Noshi,Mitsutaka Kitano,Keiichi Taniguchi,Atsuko Yamamoto,Shinya Omoto,Keiko Baba,Takashi Hashimoto,Kayo Ishida,Yukihiro Kushima,Kazunari Hattori,Makoto Kawai,Ryu Yoshida,Masanori Kobayashi,Tomokazu Yoshinaga,Akihiko Sato,Masatoshi Okamatsu,Yoshihiro Sakoda,Hiroshi Kida,Takao Shishido,Akira Naito +19 more
TL;DR: The results reveal the in vitro characteristics of BXA and support clinical use of BXM to treat influenza and support in vitro characterization of a novel CEN inhibitor, baloxavir acid (BXA), the active form of baloxvir marboxil.
Journal ArticleDOI
Reintroduction of H5N1 highly pathogenic avian influenza virus by migratory water birds, causing poultry outbreaks in the 2010-2011 winter season in Japan
Yoshihiro Sakoda,Hiroshi Ito,Yuko Uchida,Masatoshi Okamatsu,Naoki Yamamoto,Kosuke Soda,Kosuke Soda,Naoki Nomura,Saya Kuribayashi,Shintaro Shichinohe,Yuji Sunden,Takashi Umemura,Tatsufumi Usui,Hiroichi Ozaki,Tsuyoshi Yamaguchi,Toshiyuki Murase,Toshihiro Ito,Takehiko Saito,Ayato Takada,Hiroshi Kida +19 more
TL;DR: To prevent the perpetuation of viruses in the lakes where water birds nest in summer in Siberia, prompt eradication of HPAIVs in poultry is urgently needed in Asian countries where HPAI has not been controlled.
Journal ArticleDOI
Characterization of H5N1 highly pathogenic avian influenza virus strains isolated from migratory waterfowl in Mongolia on the way back from the southern Asia to their northern territory.
Yoshihiro Sakoda,Sengee Sugar,Damdinjav Batchluun,Tseren-Ochir Erdene-Ochir,Masatoshi Okamatsu,Norikazu Isoda,Kosuke Soda,Hiroki Takakuwa,Yoshimi Tsuda,Naoki Yamamoto,Noriko Kishida,Keita Matsuno,Eri Nakayama,Masahiro Kajihara,Ayaka Yokoyama,Ayato Takada,Ruuragchaa Sodnomdarjaa,Hiroshi Kida +17 more
TL;DR: It is demonstrated that wild waterfowl were sporadically infected with H5N1 HPAI viruses prevailing in domestic poultry in the southern Asia and died in Mongolia on the way back to their northern territory in spring.