parasitic embolus

例句：

1. 1. The patient's condition worsened after receiving the treatment.
   患者在接受了治疗后病情恶化。
2. 2.The study found that parasitic emboli were a major cause of death in developing countries.
   研究发现，寄生虫栓塞是发展中国家死亡的主要原因。
3. 3. The doctor advised the patient to undergo surgery to remove the parasitic emboli.
   医生建议患者接受手术以移除寄生虫栓塞。