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 .
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 .
