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Hidetaka ONISHI
Fukushima Prefectural Kenchu Livestock Hygiene Service Center, 2 Mansuida, Koriyama, Fukushima 963–8041, Japan
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Masaru SUGAWARA
Iwate Prefecture Northern Regional Livestock Hygiene Service Center, 23–9–1 Yamauchi, Karumai, Iwate 028–6222, Japan
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Masatoshi OKURA
Bacterial and Parasitic Disease Research Division, National Institute of Animal Health, National Agriculture and Food Research Organization, 3–1–5 Kannondai, Tsukuba, Ibaraki 305–0856, Japan
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Makoto OSAKI
Agriculture, Forestry and Fisheries Research Council Secretariat, Ministry of Agriculture, Forestry and Fisheries, 1–2–1 Kasumigaseki, Chiyoda-ku, Tokyo 100–8950, Japan
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Daisuke TAKAMATSU
Bacterial and Parasitic Disease Research Division, National Institute of Animal Health, National Agriculture and Food Research Organization, 3–1–5 Kannondai, Tsukuba, Ibaraki 305–0856, Japan The United Graduate School of Veterinary Sciences, Gifu University, 1–1 Yanagido, Gifu 501–1193, Japan
