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目的掌握妈湾口岸蚊类构成、密度及季节消长规律,为蚊传疾病风险评估提供科学依据。方法 2016年4-12月,对妈湾口岸的蚊类进行调查,成蚊采用双层叠帐法,幼蚊采用诱卵器法。采用RT-PCR法检测成蚊寨卡病毒和黄热病毒。结果捕获成蚊153只,经鉴定隶属1亚科2属2种,白蚊伊蚊为优势蚊种,占96.1%。平均蚊密度为5.2只/顶·h。季节消长规律为单峰型,7月份为高峰期,密度为23只/顶·h。蚊幼虫监测显示平均诱卵器指数为6.3%,阳性率集中于5-8月份,以5月份最高,达37.5%。寨卡病毒和黄热病毒检测均为阴性。结论为防止蚊媒传染病的传播,应在蚊密度和诱卵器指数高峰期加强口岸伊蚊的监测。
Objective To understand the composition, density and seasonal fluctuation of mosquitoes at Mawan Port, and to provide a scientific basis for the risk assessment of mosquito-borne diseases. Methods From April to December in 2016, mosquitoes in Mawan Port were investigated. The adult mosquitoes were double-decked and the larvae were oviparous. Adult mosquito Zika virus and yellow fever virus were detected by RT-PCR. Results 153 mosquitoes were captured and identified as 2 subfamilies in 2 genera and 1 subfamily. Aedes albopictus was the dominant mosquito, accounting for 96.1%. The average mosquito density of 5.2 / top · h. Seasonal fluctuation pattern is unimodal, in July the peak, the density of 23 / top · h. Mosquito larvae monitoring showed that the average index of ovipositor was 6.3%, the positive rate concentrated in May-August, the highest in May, up to 37.5%. Zika virus and yellow fever virus tests were negative. Conclusion To prevent the spread of mosquito-borne diseases, the monitoring of Aedes albopictus should be strengthened at the peak mosquito density and the index of the oosperm.