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目的在山东省单县范围内研究间日疟空间分布特征及其与当地媒介按蚊孳生水系的关系。方法以山东省单县为研究区域,收集2007-2012年疟疾当地感染疫情资料,对每位疟疾患者进行个案调查,采集患者居住地及其附近蚊媒孳生地的地理信息;以上疫情资料及地理信息数据批量导入或输入Google Earth软件。结果单县5年报告疟疾当地感染病例101例,分布于全县72.73%的乡镇的70个自然村,75.71%的病例村仅1例,平均每个村发病1.44例;87.13%的患者住地附近发现蚊媒孳生地,自然村发病人数与附近水体蚊媒孳生密度正相关(r=0.997,P<0.01)。结论山东省单县疟疾空间分布范围广且分散的特点加大了防治难度,消除疟疾阶段应重视疫点周围蚊媒孳生地的清除。
Objective To study the spatial distribution of P. vivax and its relationship with the local media of Anopheles sinensis in a single counties in Shandong Province. Methods A single county in Shandong Province was selected as the research area to collect the data of the local epidemic situation of malaria from 2007 to 2012. Each malaria patient was investigated by case to collect the geographical information of the mosquito breeding place in the patient’s place of residence and nearby area. Bulk data import or import of Google Earth software. Results 101 cases of local malaria cases were reported in Shanxian County in 5 years, distributed in 70 natural villages in 72.73% of the townships in the county. Only 1 case was found in 75.71% of the cases, with an average of 1.44 cases in each village. 87.13% The number of mosquito breeding sites and natural villages was positively correlated with the density of mosquito breeding in nearby water bodies (r = 0.997, P <0.01). Conclusion The wide distribution and dispersal of malaria in Shanxian County, Shandong Province, have increased the difficulty of prevention and treatment. Elimination of mosquito breeding sites around the epidemic area should be emphasized in the phase of malaria elimination.