很久以来,怀疑污水是某些原虫及肠虫感染的潜在源。清洁工经常直接接触污水,增加肠患寄生虫感染的可能性,然而直到最近,极少流行病学的调查资料。为了确定接触污水对健康的威胁。美国Cincinati城给清洁工进行大便寄生虫学的检查,作为前瞻性调查的一部分。调查对象及方法:56例清洁工,69例公路维修工均采取3 It has long been suspected that sewage is a potential source of some protozoa and intestinal worms. Cleaners often have direct contact with sewage water, increasing the likelihood of intestinal parasites infestation, however, until recently, very few epidemiological survey data. To determine the health risks of exposure to sewage. Stool parasitology was checked by cleaners in Cincinati, USA, as part of a prospective investigation. Survey objects and methods: 56 cleaners, 69 road maintenance workers have taken 3