肝蛭幼若虫のラット腹腔内移植による実験感染

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  • Artificial infection by transplantation of juvenile Fasciola worms into the abdominal cavity of rats.
  • 肝蛭幼若虫のラット腹腔内移植による実験感染〔英文〕
  • カンテツ ヨウジャク チュウ ノ ラット フククウナイ イショク ニ ヨル ジ

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Rats were successfully infected with Japanese Fasciola sp. by transplantation of juvenile worms (JW) or metacercariae (MC) into the abdominal cavity. Moreover, the rat was investigated on its suitability for different experiments with liver flukes. JWs or MCs transplanted intraperitoneally (IP) matured in the bile duct of rats. Moreover, more stable infections were established by inoculation of JWs than MCs. About 3 of 10-15 JWs transplanted into the abdominal cavity of a rat matured and laid eggs in the bile duct. The mean prepatent period was 63.5 days in the JW inoculated group. EPG values were kept constant at a level of 102-103 about 100 to 230 days after the transplantation of JWs. The life span of Japanese liver flukes was estimated to be about 400 days in rats. From these results, it was concluded that the rat is suitable for various experiments with Fasciola sp.

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