cryptocystis

例句：

1. 1. The infection is caused by a protozoan parasite called Cryptosporidium.
   这种感染是由一种称为隐孢子虫的原生动物寄生虫引起的。
2. 2. Cryptosporidium has been identified as the cause of diarrhea in many countries.
   隐孢子虫被确认为许多国家腹泻的原因。
3. 3.Treatment for cryptosporidiosis involves the use of antiparasitic drugs.
   治疗隐孢子虫病需要使用抗寄生虫药物。