血寄生菌

例句：

1. 1. The disease is caused by the blood parasite.
   这种疾病是由血吸虫引起的。
2. 2. The doctor treated him with anti-parasitic drugs.
   医生给他开了抗寄生虫药物。
3. 3. Blood parasites can cause serious health problems.
   血吸虫可以引起严重的健康问题。