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目的分析该市按蚊的分布及其变化特征,为制定传疟媒介措施以及巩固全市疟防成果提供依据。方法采用描述性流行病学方法对1950—2016年全市疟疾蚊媒监测数据进行分析。结果乐山市不同县区以及同一县区不同时期蚊种以及按蚊的种群、密度和生态习性都在发生变化,嗜人按蚊的分布与疟疾流行高峰一致。结论随着自然及社会环境的改变,全市蚊种以及按蚊的种群和密度也随着改变,今后应继续加强疟疾蚊媒监测。
Objective To analyze the distribution and the changing characteristics of Anopheles mosquito in this city and provide the basis for formulating malaria vector measures and consolidating the results of malaria prevention in the whole city. Methods Descriptive epidemiological methods were used to analyze malaria mosquito vector surveillance data from 1950 to 2016 in the city. Results The populations, densities and ecological habits of mosquito species and Anopheles mosquito in different counties and districts in Leshan were changed at different times. The distribution of Anopheles anthropophagus was consistent with the peak of malaria epidemic. Conclusion As the natural and social environment changes, mosquito species and the population and density of mosquitoes in the city also change. Mosquito vectors monitoring should continue to be strengthened in the future.