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目的了解山东省中华按蚊生态习性和对杀虫剂的抗性状况,为山东省蚊传疾病的防控提供科学依据。方法 2008-2011年选择山东省微山县作为中华按蚊监测点,采用夜间室外通宵帐内人饵诱捕法进行密度和季节变化调查;采用WHO生物测定方法,测定不同地区中华按蚊对4种杀虫剂的抗药性。结果 2008-2011年山东省微山县疟疾媒介监测点捕到中华按蚊,其密度高峰出现在7月;部分地区中华按蚊对溴氰菊酯产生抗性(抗性级别为R),对三氯杀虫酯、残杀威和氯氰菊酯仍为敏感或产生初步抗性。结论疟疾防治中仍应继续加强媒介的监测与控制,警惕因中华按蚊密度升高而致疟疾疫情回升。
Objective To understand the ecological habits and insecticide resistance of Anopheles sinensis in Shandong Province and provide a scientific basis for the prevention and control of mosquito-borne diseases in Shandong Province. Methods Weishan County of Shandong Province was selected as the monitoring point of Anopheles sinensis in 2008-2011. The density and seasonal variation of the population were determined by night-time outdoor overnight bait trapping method. The WHO bioassay method was used to determine the effects of Anopheles sinensis on four species Insecticide resistance. Results Anopheles sinensis was found in Weishan County, Shandong Province from 2008 to 2011. The density peak appeared in July. In some areas, Anopheles sinensis was resistant to deltamethrin (resistance level R) CTC, propoxur and cypermethrin are still sensitive or produce initial resistance. Conclusion Malaria should continue to strengthen the monitoring and control of the media in the prevention and treatment of malaria, and vigilance against the rise of malaria caused by the increased density of Anopheles sinensis.