河南省人群蛔虫感染情况纵向调查与分析

目的 对河南省1988-1992年、2002-2004年进行的两次人体寄生虫病调查的蛔虫感染情况进行纵向比较，掌握其流行情况和防治效果，为进一步制定防治规划提供依据。方法 分别按照2次调查实施细则进行抽样和开展寄生虫调查，采用改良加藤法粪检蛔虫卵。将两次调查的居民蛔虫感染率，分别以地理、地貌、经济状况、性别和当地健康教育及全民驱虫情况分组进行统计分析。结果 与第1次谪查相比，第2次调查人群蛔虫总感染率由41．35％（35377／85555）降至4．29％（655／15244）。各组人群蛔虫感染率均显著下降，其中经济收入较高的地区或进行正规健康教育和全民驱虫地区人群蛔虫感染率分别降至1．36％（104／7641）和0．64％（49／7633）。结论 河南省人群蛔虫感染率较10年前显著下降在当地居民经济收入增高、肠道寄生虫感染率降至较低水平后，开展全民健康教育和驱虫是进一步降低居民蛔虫感染率最有效的措施。

A longitudinal study on ascaris infection in Henan Province, China

Objective To longitudinally compare 2 investigations on ascaris in Henan Province in 1988-1992 and 2002-2004,understand the epidemic situation and control effect,and provide data for to project of ascaris control in Henan Province.Methods The survey was carried according to the unified methods formulated by the national investigation scheme,modified Kato-Katz thick smear were applied for parasitological diagnosis,infection rate was analyzed by Chi-square test,different factors such as geographic characteristics, economic status,gender,health education and mass parasiticide therapeutic were considered and analyzed.Results Compared to the first survey,infection rate of ascaris was dramatically decreased from 41.35%(35 377/85 555) to 4.29%(655/15 244),the obvious drop generated in all groups,especially in areas with high income and/or health education and mass parasiticide therapy were well conducted.Conclusion The present infection rate of human parasite dramatically decreased comparing with the investigated results of 10 years ago in Henan Province.With the socieo-economic development,health education and mass parasiticide therapy are the most effective methods for ascaris control when parasite infection rate had dropped to certain degree.