Modena C M, Coelho P M, Barbosa F S, Lima W S
Escola de Veterinária da Universidade Federal de Minas Gerais, Belo Horizonte, Brasil.
Rev Inst Med Trop Sao Paulo. 1993 Jan-Feb;35(1):11-6. doi: 10.1590/s0036-46651993000100002.
Three calves experimentally infected with Schistosoma mansoni, and passing viable eggs in feces, as well as 5 normal calves (coming from a non-endemic area for schistosomiasis) kept as controls, were maintained in an enclosure (850 m2 in area). In this enclosure, a tank with water received 500 laboratory reared Biomphalaria glabrata. All the control calves were infected for a period ranging from 79 to 202 days after the beginning of the experiment, and afterwards presented viable S. mansoni eggs in feces. The mean worm recovery was 555. The snail population increased throughout the experimental period, showing a high number of B. glabrata infected with S. mansoni (42% on average). According to the present study, bovine has been suggested as having potentially a role in the maintenance of the life cycle of S. mansoni.
三只经曼氏血吸虫实验感染且粪便中排出活卵的小牛，以及作为对照饲养的5头正常小牛（来自非血吸虫病流行区），被饲养在一个围栏（面积850平方米）中。在这个围栏里，一个装有水的水箱中放入了500只实验室饲养的光滑双脐螺。所有对照小牛在实验开始后79至202天内被感染，之后粪便中出现了活的曼氏血吸虫卵。平均虫体回收率为555。在整个实验期间，蜗牛数量增加，显示出大量感染曼氏血吸虫的光滑双脐螺（平均42%）。根据本研究，已表明牛在曼氏血吸虫生命周期的维持中可能具有一定作用。
