Occurrence of Yersiniosis and Listeriosis in wild boars in Japan

• Published in: Journal of wildlife diseases Vol. 38; no. 1; pp. 202 - 205
• Main Authors: Hayashidani, Hideki, Kanzaki, Nobuo, Kaneko, Yuji, Okatani, Alexandre Tomomitsu, Taniguchi, Takahide, Kaneko, Ken-ichi, Ogawa, Masuo
• Format: Journal Article
• Language: English
• Published: United States Wildlife Disease Association 01.01.2002; Wildlife Dis Assoc
• Subjects: Age Factors; Animals; Animals, Wild; Feces - microbiology; Female; Isolation; Japan - epidemiology; Listeria - classification; Listeria - isolation & purification; Listeria - pathogenicity; Listeria monocytogenes; Listeriosis - epidemiology; Listeriosis - veterinary; Male; occurrence; Serotyping - veterinary; survey; Sus scrofa leucomysta; Swine; Swine Diseases - epidemiology; Swine Diseases - microbiology; Virulence; wild boar; Yersinia - classification; Yersinia - isolation & purification; Yersinia - pathogenicity; Yersinia Infections - epidemiology; Yersinia Infections - veterinary; Yersinia pseudotuberculosis; Japan
• ISSN: 0090-3558; 1943-3700
• DOI: 10.7589/0090-3558-38.1.202

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.