microfilaria

例句：

1. 1. The microfilariae are the larval stage of the parasite.
   微丝蚴是寄生虫的幼虫阶段。
2. 2. The microfilariae can be detected in the blood tests.
   在血液测试中可以检测到微丝蚴。
3. 3. The treatment for microfilariasis is often difficult and requires a long recovery time.
   治疗微丝蚴症通常很困难，需要长时间的恢复时间。