应用两级催化模型分析广西两县居民华支睾吸虫病的感染状况  

Using two-stage catalytic model on the survey of current status of clonorchis sinensis infection of two county residents in GuangXi

作　　者：王鸽[1] 欧阳颐 黎学铭 王静[1] 杨芳芳 张小娟 刘腾[1] 

机构地区：[1]广西医科大学寄生虫教研室,南宁市530021 [2]广西疾病预防控制中心,南宁市530028

出　　处：《内科》2011年第6期555-557,共3页Internal Medicine

基　　金：广西卫生厅重点项目(重200718);广西自然科学基金项目(2010GXNSFA013226)

摘　　要：目的了解广西横县和上林县居民华支睾吸虫病的感染情况。方法应用改良加藤法确诊华支睾吸虫感染者,应用两级催化模型对居民华支睾吸虫感染情况进行分析。结果两县居民华支睾吸虫感染率为56.51%,其中40～年龄组感染率最高,为70.37%,各年龄组间感染率差异有统计学意义。居民华支睾吸虫感染率的两级催化模型曲线方程为y^=1.36(e-0.012t-e-0.045t),感染力a值为0.045,失去感染力b值为0.012,每年分别有4.5%的新增感染者和1.2%的感染者转阴,感染率最高的理论年龄c值为40.05岁。结论经χ2检验认为两级催化模型拟合良好,华支睾吸虫传播速度较快且阴转慢,人群感染华支睾吸虫维持在一个比较高的水平。Objective To investigate current status of clonorchis sinensis infection of two county residents in Guangxi.Methods Fecal examination was carried out by modified Kato-katz method.The status of infection was analyzed by using two-stage catalytic model.Results The infection rates of the clonorchis sinensis in two county residents were 56.51%.People of 40~ age group showed the highest infection rate（70.37%）.There were was statistically differences among all age groups in infection rates.The curve equation of two-stage catalytic model was =1.36（e-0.012t-e-0.045t）.Value a（infection ability） and value b（recover ability） were 0.045 and 0.012 respectively.It meant that 4.5% people suffered infection of clonorchis sinensis and 1.2% people recovered each year.The highest infection rate of age theory（c value） was 40.05.Conclusions Two-stage catalytic model was fitted good,confirmed by chi-square test,and showed a high prevalence of Clonorchis sinensis because of a high spread speech and a slow rate of recover.

关 键 词：两级催化模型 华支睾吸虫病 流行状况 

分 类 号：R532.23[医药卫生—内科学]