Infection with Paragonimus westermani of boar-hunting dogsin Western Japan maintained via artificial feeding with wild boar meat byhunters

The Journal of Veterinary Medical Science

Shigehisa HABE¹  Nariaki NONAKA²  Takao IRIE³  Yoichiro HORII³  Pham Ngoc DOANH⁴  Zhi Hong GUO⁴  Yohei YAMAGUCHI⁵ 

[1] Departement of Parasitology, Institute of Ecology andBiological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet,Nghia Do, Cau Giay, Hanoi, Vietnam;Department of Microbiology and Immunology, School ofMedicine, Fukuoka University, 7-45-1 Nanakuma, Fukuoka Jonan-ku, Fukuoka 814-0180,Japan;Laboratory of Veterinary Parasitic Diseases,Interdisciplinary Graduate School of Medicine and Veterinary Medicine, University ofMiyazaki, 1-1 Gakuen-Kibanadai-Nishi, Miyazaki, Miyazaki 889-2192,Japan;Laboratory of Veterinary Parasitic Diseases, Departmentof Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, 1-1Gakuen-Kibanadai-Nishi, Miyazaki, Miyazaki 889-2192, Japan;Medical Zoology Group, Department of InfectiousDiseases, Hokkaido Institute of Public Health, North 19, West 12, Kitaku, Sapporo,Hokkaido 060-0819, Japan

关键词: dog;    epidemiology;    Japan;    Paragonimus westermani;    wild boar;   

DOI  :  10.1292/jvms.17-0149

学科分类：兽医学

来源: Japanese Society of Veterinary Science

【 摘 要 】

Infection of boar-hunting dogs with Paragonimus westermani wasinvestigated in Western Japan. Blood and rectal feces were collected from 441 dogs in thethree districts (205 in Kinki, 131 in Chugoku and 105 in Shikoku District). In a screeningELISA for serum antibody against P. westermani antigen, 195 dogs (44.2%)showed positive reaction. In the 195 dogs, 8 dogs were found excreting P.westermani eggs after molecular analysis of fecal eggs, and additional 7 wereidentified serologically for the parasite infection because of their stronger reactivityagainst P. westermani antigen than against antigens of other species ofParagonimus. A spatial analysis showed that all of the P.westermani infections were found in Kinki and Chugoku Districts. In this area,dogs’ experience of being fed with raw boar meat showed high odds ratio (3.35) to thesero-positivity in the screening ELISA, and the frequency of such experiences wassignificantly higher in sero-positive dogs. While clear relationship was not obtainedbetween predation of boars by dogs during hunting and their sero-positivity. Therefore, itis suggested that human activity of feeding with wild boar meat is the risk factor forP. westermani infection in boar-hunting dogs. Considering that huntingdogs could play as a major definitive host and maintain the present distribution ofP. westermani in Western Japan, control measures for the infection inhunting dogs, such as prohibition of raw meat feeding and regular deworming, should beundertaken.

【 授权许可】

Unknown