According to who , the infection usually begins in childhood but often takes years to cause elephantiasis .

根据who的数据，感染通常在儿童时期发生，但要花上几年才引发象皮病。

Since 2008 , for example , volunteers in sierra leone have distributed drugs to fight elephantiasis , locally dubbed " big fut " .

例如自2008年起，塞拉利昂的志愿者开始分发药品抗击象皮病，当地称此为“大规模行动”。

With river blindness , black flies spread larvae that when grown destroy eye tissue ; mosquitoes do the same for the worms that block the lymphatic system in elephantiasis ; hookworm , roundworm and whipworm are soil-born .

河盲症，是由黑蝇产卵传播，而卵生长时破坏眼部组织的疾病；蚊子以同样的方法传播蠕虫，这些蠕虫会堵塞淋巴系统从而导致产生象皮病；十二指肠虫，蛔虫以及鞭虫都来通过土壤传染。

But it also kills several tropical parasites , including the mosquito-borne ones that cause lymphatic filariasis-a disease also called elephantiasis for the horribly swollen limbs suffered by patients-and those carried by black flies that cause onchocerciasis , or river blindness .

然而它也杀灭数种热带寄生虫，其中包括几种蚊媒寄生虫，可引起淋巴丝虫病因病人的肢体发生可怕的肿胀，故亦称为象皮病以及那些由黑蝇携带的寄生虫，可致盘尾丝虫病，又称河盲症。