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1 January 2002 Occurrence of Yersiniosis and Listeriosis in wild boars in Japan
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From December 1994 to February 1995, 131 wild boars (Sus scrofa leucomysta) living in a mountainous area in Japan were examined for yersiniosis and listeriosis. Of 131 wild boars, 76 (58%) were males and 55 (42%) were females. Four Yersiniaspp. including Y. pseudotuberculosis, Y. enterocolitica, Y. frederiksenii,and Y. aldovei,were isolated from 49 (37%) of 131 wild boars. Yersinia pseudotuberculosiswas isolated from five (4%) of 131 wild boars. All Y. pseudotuberculosisisolates were serotype 4b and harbored virulence plasmids. Yersinia pseudotuberculosiswas isolated only from boars under 2-yr-old. No human pathogenic Y. enterocoliticawas isolated. Listeria monocytogeneswas isolated from two (1%) of the wild boars and both isolates were serotype 4b. These findings indicated that wild boar could be a reservoir of Y. pseudotuberculosisand L. monocytogenesin Japan.

Hayashidani, Kanzaki, Kaneko, Okatani, Taniguchi, Kaneko, and Ogawa: Occurrence of Yersiniosis and Listeriosis in wild boars in Japan
Hideki Hayashidani, Nobuo Kanzaki, Yuji Kaneko, Alexandre Tomomitsu Okatani, Takahide Taniguchi, Ken-ichi Kaneko, and Masuo Ogawa "Occurrence of Yersiniosis and Listeriosis in wild boars in Japan," Journal of Wildlife Diseases 38(1), 202-205, (1 January 2002).
Received: 2 August 1999; Published: 1 January 2002

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