Graczyk T K, Shiff C J
Johns Hopkins University School of Hygiene and Public Health, Department of Immunology and Infectious Diseases, Baltimore, Maryland 21205.
J Wildl Dis. 1993 Jul;29(3):434-9. doi: 10.7589/0090-3558-29.3.434.
In order to study transmission patterns of Notocotylus attenuatus five 3-wk-old domestic ducks, five 8-wk-old rats and ten 4-wk-old mice were infected with the parasite. All ducks became infected and all flukes were recovered from the intestinal ceca. Worms moved down the length of the cecum during development and as the parasites grew they changed their method of attachment. Flukes became gravid by day 16 post-infection, after which growth ceased. Egg filaments appear to play a role in the formation and movement of worm egg clusters from the distal portion of the cecum to the lumen of small intestine. Rodents also became infected with the parasite producing granulomatous nodular lesions in the lower small intestine but all flukes in the granulomata were dead. It is unlikely that transmission of this trematode can depend on mice and rats.
为研究细弱背孔吸虫的传播模式，将5只3周龄的家鸭、5只8周龄的大鼠和10只4周龄的小鼠感染该寄生虫。所有鸭子均被感染，且所有吸虫均从肠道盲肠中回收。在发育过程中，虫体沿盲肠长度向下移动，随着寄生虫的生长，它们改变了附着方式。感染后第16天吸虫开始成熟，此后生长停止。卵丝似乎在虫卵簇从盲肠远端向小肠肠腔的形成和移动中起作用。啮齿动物也感染了该寄生虫，在小肠下段产生肉芽肿性结节病变，但肉芽肿内的所有吸虫均已死亡。这种吸虫的传播不太可能依赖于小鼠和大鼠。
