Jpn. J. Infect. Dis., 56, 110-113, 2003

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Short Communication

Isolation of Influenza A H1N2 Viruses from an Outbreak in Yokohama City during the 2001-2002 Influenza Season in Japan

Chiharu Kawakami, Takehiko Saito1*, Yoko Nakaya1, Setsuko Nakajima1, Tetsuya Munemura, Miwako Saikusa, Yuzo Noguchi, Kikushige Fujii, Mikio Takaoka, Reiko Ito1, Toshinori Saito1, Takato Odagiri1 and Masato Tashiro1

Yokohama City Institute of Health, Yokohama 235-0012 and 1Department of Virology III, National Institute of Infectious Diseases, Tokyo 208-0011, Japan

(Received May 26, 2003. Accepted July 11, 2003)

SUMMARY: Emergence of Influenza A H1N2 viruses was documented worldwide during the 2001-2002 influenza season. In Japan, H1N2 viruses were isolated from two students of a junior high school in an influenza outbreak in Yokohama City, February 2001. Genetic and antigenic analyses demonstrated that the H1N2 viruses isolated in Japan shared common features with those isolated in other countries.


*Corresponding author: Mailing address: Department of Virology III, National Institute of Infectious Diseases, Gakuen 4-7-1, Musashi-Murayama, Tokyo 208-0011, Japan. Tel: +81-42-561-0771, Fax: +81-42-561-0812, E-mail: taksaito@nih.go.jp


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