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首页> 外文期刊>The Korean Journal of Parasitology >Experimental infection of Paragonimus westermani in mice and rats
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Experimental infection of Paragonimus westermani in mice and rats

机译：百日草对小鼠和大鼠的实验感染

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To determine the infectivity and maturity of metacercariae of Paragonimus westermani after keeping at low temperature for a long period, 45 mice and 45 rats were each infected with 20 metacercariae which were kept at 4℃ for 8 to 234 days. The worm recovery in mice increased with age of worm and reached a peak of 32% at 41-50 days and then decreased with age. The rate in rats first decreased to a lowest point of 6% at 71-100 days and then increased with age. In 42 infected mice and 41 infected rats, 187 immature worms (183 tiny and 4 juvenile ones) and 190 worms (164 tiny, 19 juvenile and 7 mature ones) were recovered respectively. Two worm cysts with eggs only and 8 empty worm cysts were also found in the rats. In addition, the frozen metacercariae can still develop to mature worms in SD rats.
机译：为确定低温保存的百日咳对角meta的感染性和成熟度，将45只小鼠和45只大鼠分别感染20只meta，将其在4℃下保存8至234天。小鼠的蠕虫恢复率随着蠕虫年龄的增加而增加，在41-50天达到32％的峰值，然后随着年龄的增长而降低。大鼠的发病率在71-100天时首先降至6％的最低点，然后随着年龄的增长而增加。在42只受感染的小鼠和41只受感染的大鼠中，分别回收了187只未成熟的蠕虫（183只微小和4只幼虫）和190只蠕虫（164只微小，19只少年和7只成熟的蠕虫）。在大鼠中还发现了两个仅带卵的蠕虫囊肿和8个空的蠕虫囊肿。此外，冷冻的尾cer在SD大鼠中仍可发育成成熟的蠕虫。

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