蛔虫和钩虫都是常见的人体肠道线虫,可分别引起蛔虫病、钩虫病,有时甚至导致严重的并发症或危及生命。农村感染较城市为多。此外,粪类圆线虫已日益为人们所重视,我国的14个省、市、自治区有粪类圆线虫病的病例报告:这三种肠道线虫的生活史中,均存在体内移行过程,幼虫一般都经过在肺部的发育阶段后,循细 Roundworms and hookworms are common human intestinal nematodes that can cause ascariasis, hookworm disease, and sometimes even serious complications or life-threatening conditions. Rural infection more than the city. In addition, the round worms of faeces have been paid more and more attention. There are cases of stink bug in 14 provinces, cities and autonomous regions in our country. The life history of these three kinds of intestinal nematodes are all in vivo. Generally after the developmental stage of the lungs, by careful