Abstract

From 1997 to 1999, epidemiological surveys of helminths in such wild mammals as foxes and rodents were conducted in Kanagawa, Yamanashi, Shizuoka, and Nagano Prefectures and in Tokyo. Each infected fox harbored two or more of the following helminth species: six species of nematodes (Taxocara canis, Trichuris vulpis, Anclystoma kushimaense, Arthrostoma miyazakiense, Strongyloides planiceps, and Molineus patens); two species of trematodes (Metagonimus takahashii and Concinnum ten); and one species of cestode (Taenia pisiformis). In total, nine different helminths were detected in 25 (78.1%) of 32 animals examined. The crysticerci T. taeniaeformis and T. crassiceps were found in Rattus rattus and in Apodemus speciosus. The pleroceroide of Spirometra erinaceieuropaei was detected for the first time in Urotrichus talpoides, heretofore never considered a host. No Echinococcus adults or larvae, however, were detected in the animals examined.

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