虫多的

By dissecting moribund fishes and isolationg the pathogens, we found that the “infection syndrome” was a complex polyinfection caused by Myxosporea and secondary bacterial infection.

个养殖场的患病鱼体进行解剖观察及病原离鉴定，发现此病症是由粘孢子虫寄生并继发细菌感染而引的疾病。

Human African trypanosomiasis, more commonly called sleeping sickness, is induced by a parasite, the trypanosome, transmitted to humans by the bite of an insect, the glossinid tse-tse fly.

人非洲锥虫病，更的被称为昏睡病，是由锥体虫通过拟舌蝇叮咬感染人体而引的。