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目的了解云南省洱源县人体重要寄生虫感染的现状和特点,为制定防治对策提供科学依据。方法采用随机抽样法在全县抽取35个自然村为调查点,每个调查点随机抽取35户居民作为调查对象。对土源性线虫、绦虫和血吸虫感染等采用病原学检查,旋毛虫病、猪囊尾蚴病和血吸虫病采用血清学检查。结果寄生虫总感染率为23.34%(772/3308),其中坝区与山区人群感染率分别为19.55%(333/1703)和27.35%(439/1605),两者差异有统计学意义(P<0.01)。共查出7种寄生虫,感染率分别为蛔虫15.75%、钩虫0.33%、鞭虫1.87%、绦虫(包括链状带绦虫和微小膜壳绦虫)3.72%、蛲虫0.18%、血吸虫1.51%。混合感染人数占总感染人数的8.94%(69/772)。旋毛虫病、猪囊尾蚴病和血吸虫病的血清阳性率分别为57.30%(2103/3670)、18.20%(668/3670)、21.16%(958/3662)。本次调查结果寄生虫总感染率低于2004年全省调查的28.86%,而高于全国的19.56%。结论洱源县山区人群的人体重要寄生虫感染率明显高于坝区。感染虫种以蛔虫为主,其次为绦虫。绦虫病、猪囊尾蚴病、旋毛虫病和血吸虫病为今后该县寄生虫病防治工作的重点。
Objective To understand the status quo and characteristics of important parasitic infections in human body in Eryuan County, Yunnan Province, and to provide a scientific basis for the development of control strategies. Methods A total of 35 natural villages were selected as the survey sites by random sampling method, and 35 households were selected randomly from each survey site. Serological tests were performed on echinococcosis, tapeworms and schistosomiasis using etiological tests, trichinosis, cysticercosis and schistosomiasis. Results The total infection rate of parasites was 23.34% (772/3308). The infection rates in dam area and mountain area were 19.55% (333/1703) and 27.35% (439/1605), respectively, with significant difference (P <0.01). A total of 7 parasites were detected. The infection rates were 15.75% of roundworms, 0.33% of hookworms, 1.87% of whipworms, 3.72% of tapeworms (including tapeworms and tapeworms), 0.18% of pinworms and 1.51% of schistosomes. Mixed infections accounted for 8.94% (69/772) of the total number of people infected. Seroprevalence of Trichinellosis, Cysticercosis and Schistosomiasis were 57.30% (2103/3670), 18.20% (668/3670) and 21.16% (958/3662), respectively. The survey’s total parasitic infection rate was lower than the 28.86% surveyed by the province in 2004, but higher than the national 19.56%. Conclusion The prevalence of major parasitic infections in mountainous areas of Eryuan County is significantly higher than that in dam areas. Infection worms to roundworms, followed by tapeworms. Taeniasis, Cysticercosis, Trichinellosis and Schistosomiasis for the future focus of prevention and treatment of parasites in the county.