在此浓度，控制原生动物寄生虫是可以实现的。
At this concentration, control of protozoan parasites can be achieved.
人们从疟蚊感染了疟疾，它们被感染的原生动物寄生虫称为疟原虫。
People get malaria from Anopheles mosquitoes that themselves are infected with a protozoan parasite called Plasmodium.
隐孢子虫病（crypto）和等孢球虫病都是由原生动物寄生虫引起的。
Cryptosporidiosis (crypto) and isosporiasis are both caused by protozoan parasites.
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