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1917年Narabayashi曾叙述了实验动物接种日本血吸虫尾蚴后发生的先天性血吸虫病,1969年Bittencourt和Mott曾在人的胎盘里发现了曼氏血吸虫。本文作者企图获得先天性感染而进行了实验。用从扁卷螺逸出的大量LE株曼氏血吸虫昆蚴,经皮肤接种妊娠的小白鼠,每鼠分笼饲养,每天进行观察,记录生产日期和幼鼠数。因为有些雌鼠接种了5,000条尾蚴,在感染后20天左右即将鼠杀死,将幼鼠与未感染的雌鼠放在
In 1917, Narabayashi described the history of congenital schistosomiasis in laboratory animals infected with Schistosoma japonicum, and in 1969 Bittencourt and Mott discovered human Schistosoma mansoni in human placenta. The author attempted to get an innate infection and did the experiment. Pregnant mice were inoculated intradermally with guinea pigs infected with Schistosoma mansoni, which escaped from flat snails. Each mouse was housed in cage and observed daily. The date of production and number of pups were recorded. Because some females were vaccinated with 5,000 cercariae, mice were sacrificed approximately 20 days after infection, and young and uninfected females were placed on