monoparasitism

例句：

1. 1.The disease is caused by a single parasite that infects the host's bloodstream.
   这种疾病是由一种单一寄生虫引起的，该寄生虫感染宿主的血液。
2. 2. The monoparasitism of the parasite can lead to severe health problems in humans.
   这种寄生虫的单寄生可能导致人类严重的健康问题。
3. 3.In this study, we found that certain species of algae have a high degree of monoparasitism.
   在这项研究中，我们发现某些种类的藻类具有很高的单寄生程度。