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Volume 17, Number 4—April 2011

Dispatch

Highly Pathogenic Avian Influenza Virus Infection in Feral Raccoons, Japan

Taisuke HorimotoComments to Author , Ken Maeda, Shin Murakami, Maki Kiso, Kiyoko Iwatsuki-Horimoto, Mariko Sashika, Toshihiro Ito, Kazuo Suzuki, Mayumi Yokoyama, and Yoshihiro Kawaoka
Author affiliations: Author affiliations: University of Tokyo, Tokyo, Japan (T. Horimoto, S. Murakami, M. Kiso, K. Iwatsuki-Horimoto, Y. Kawaoka); Yamaguchi University, Yamaguchi, Japan (K. Maeda); Obihiro University of Agriculture and Veterinary Medicine, Hokkaido, Japan (M. Sashika); Tottori University, Tottori, Japan (T. Ito); Hikiiwa Park Center, Wakayama, Japan (K. Suzuki); Wildlife Management Research Center, Hyogo, Japan (M. Yokoyama)

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Table 2

Cross-reactivity of avian influenza (H5N1) virus neutralizing antibody–positive samples from feral raccoons, Japan*

1
2.1.3
2.2a
2.2b
2.3.2
2.3.4
2.5
A-1 <8 <8 8 32 8 <8 <8 16 <8 <8
A-2, 3, 4 <8 <8 64 256 64 <8 <8 128 <8 <8
A-5 <8 32 64 512 64 8 8 256 <8 64
A-6 <8 32 64 1,024 128 8 8 128 8 16
B-1 <8 32 32 256 128 8 16 256 8 64
B-2 <8 8 16 256 64 <8 8 256 8 64
C-1 <8 8 16 256 16 1,024 <8 64 <8 <8
C-2 <8 <8 16 512 16 256 <8 256 <8 <8

*We used A/PR8/34 (H1N1), A/Aichi/2/68 (H3N2), A/quail/Aichi/1/09 (H7N6), A/seal/MA/1/80 (H7N7), A/Hong Kong /1073/99 (H9N2), A/Vietnam/1194/04 (H5N1; clade 1), A/Indonesia/3006/05 (H5N1; clade 2.1.3), A/whooper swan/Mongolia/4/05 (H5N1; clade 2.2a), A/chicken/Miyazaki/K11/07 (H5N1; clade 2.2b), A/whooper swan/Akita/1/08 (H5N2; clade 2.3.2), A/Hanoi/30850/05 (H5N1; clade 2.3.4), A/chicken/Yamaguchi/8/04 (H5N1; clade 2.5), A/chicken/Ibaraki/1/05 (H5N2), and A/whooper swan/Shimane/499/83 (H5N3) as antigens for the virus neutralization test. Representative data from 3 independent experiments are shown.

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