diplostomumiasis

例句：

1. 1. The patient was diagnosed with malaria after a long journey.
   这位病人在长途旅行后被诊断出患有疟疾。
2. 2. Malaria is a disease caused by the parasite Plasmodium falciparum.
   疟疾是由寄生虫疟原虫引起的疾病。
3. 3. In some parts of Africa, malaria is still a major public health concern.
   在一些非洲地区，疟疾仍然是主要的公共卫生问题。