A flagellate protozoan , such as a trypanosome , that is parasitic in the blood .

血鞭毛虫一种鞭毛原生动物，如锥体虫，寄生于血液之中。

To obtain genetic stable strain , we evaluated the clearance of symbionts in tsetse , impact of vitamin supplement on fly fertility and relationship between symbiont and trypanosome infection .

为了获得稳定的遗传株,我们还研究了如何清除苍蝇的共生菌,如何添加维生素来维持苍蝇的生育能力以及共生菌对锥虫感染的影响。