schistosomiasis mekong

例句：

1. 1.The disease is caused by the parasite Schistosoma mansoni.
   这种疾病是由寄生虫Schistosoma mansoni引起的。
2. 2.The treatment for this disease involves a combination of medication and surgery.
   这种病的治疗需要药物和手术的结合。
3. 3. The prevalence of the disease in the region has been increasing over recent years.
   该地区近年来血吸虫病的发病率有所增加。