根据已有调查材料,钩虫病在我省热带及亚热带的边疆地区,流行范围广泛,感染率有的高达80%(如澜沧勐朗坝),但因感染程度不太严重,钩虫病临床症状极少发现,因而在普查时,就不可能采用访问和目测来确定治疗对象。已往调查,多采用涂片法,沉淀法及漂浮法,其中以漂浮法为佳,但需要贵重器材——显微镜,而在大面积普查中显微镜供应又很困难,且不容易为大多数人掌握,因此在诊断上要求能有一个多快好省的,为群众所容易掌握而又符合科学要求的调查方法,以便迅速大面积开展防治工作消灭钩虫病。我们在1958年12月至 According to the surveyed materials, hookworm disease is endemic in the tropical and subtropical frontier areas of our province, with a prevalence of up to 80% (such as Menglang dam in Lancang). However, due to less serious infection, hookworm disease Clinical symptoms are seldom found, so it is impossible to determine the treatment target by interview and visual inspection at the time of the census. In the past, smear method, sedimentation method and float method were mostly used, of which floating method was better, but expensive equipment - microscope was needed, and microscope supply was very difficult in large area census and it was not easy for most people to master Therefore, it is required to diagnose the problem of how to have a more efficient and convenient way for the masses to grasp and to meet the scientific requirements of the investigation method so as to quickly and extensively prevent and control hookworm disease. We arrived in December 1958