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Prevalence and intensity of Echinococcus multilocularis in red foxes (Vulpes vulpes schrencki) and raccoon dogs (Nyctereutes procyonoides albus) in Otaru city, Hokkaido, Japan

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Please use this identifier to cite or link to this item:http://doi.org/10.14943/jjvr.49.4.287

Title: Prevalence and intensity of Echinococcus multilocularis in red foxes (Vulpes vulpes schrencki) and raccoon dogs (Nyctereutes procyonoides albus) in Otaru city, Hokkaido, Japan
Authors: YIMAM, Alebel Ewunetu Browse this author
NONAKA, Nariaki Browse this author
OKU, Yuzaburo Browse this author
KAMIYA, Masao Browse this author
Keywords: Echinococcus multilocularis
ELISA
Japan
Nyctereutes procynoides albus
raccoon dog
red fox
Vulpes vulpes schrencki
Issue Date: 28-Feb-2002
Publisher: The Graduate School of Veterinary Medicine
Journal Title: Japanese Journal of Veterinary Research
Volume: 49
Issue: 4
Start Page: 287
End Page: 296
Abstract: A survey was done in an attempt to investigate the epidemiological status of Echinococcus multilocularis in red foxes and raccoon dogs in Otaru city from June to September 1999. Sixty-seven red foxes (Vulpes vulpes schrencki) and 13 raccoon dogs (Nyctereutes procyonoides albus) were captured, and postmortem examinations were conducted with them. Thirty-eight red foxes (56.7%) and 3 raccoon dogs (23.1%) were found to be infected with E. multilocularis. The total biomass of E. multilocularis in all infected red foxes and raccoon dogs were 2,817,000 and 1,515 worms, respectively. Nine of the infected red foxes harboring more than 100,000 worms accounted for 90.6% of the total biomass. No significant differences in the prevalence were observed between male and female, and juvenile and adult. However, the worm burden was higher in juvenile than in adult foxes. In one of the infected raccoon dogs, mature worms and eggs of E. multilocularis were found in the intestine and fecal sample, respectively. This result suggested that the raccoon dogs are probably playing a small role in the egg contamination of the environment. The validity of coproantigen ELISA for diagnosis of foxes was confirmed by comparing the results of autopsy, egg examination and coproantigen ELISA using rectal fecal samples.
Type: bulletin (article)
URI: http://hdl.handle.net/2115/2926
Appears in Collections:Japanese Journal of Veterinary Research > Volume 49, Number 4

Submitter: 獣医学部図書室

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