武汉市2017年登革热媒介白纹伊蚊监测分析

doi:10.11853/j.issn.1003.8280.2020.02.022

摘要/Abstract

摘要： 目的掌握武汉市登革热媒介白纹伊蚊幼蚊和成蚊种群密度变化，为媒介伊蚊防制对策提供科学依据。方法 2017年4-11月，采用布雷图指数（BI）法监测白纹伊蚊幼蚊密度，采用双层叠帐法和诱蚊灯法监测白纹伊蚊成蚊密度。采用Excel 2013软件建立数据库，SPSS 21.0软件对白纹伊蚊不同生境的密度差异以及不同月份的密度差异进行方差分析，率的比较采用χ²检验。结果诱蚊灯法共采集145只白纹伊蚊，平均密度为0.52只/（灯·夜），其中公园密度最高，郊区农户密度最低，分别为0.86和0.23只/（灯·夜）；BI法共发现阳性积水165处，平均BI为10.30，其中7月最高，BI为17.00；双层叠帐法共采集213只白纹伊蚊成蚊，平均密度为2.22只/（顶·h），密度呈单峰型，高峰出现在9月，蚊密度为4.33只/（顶·h）。结论武汉市白纹伊蚊密度较高，分布广，当地存在登革热疫情暴发风险。建议相关部门应加强蚊媒密度监测及其环境治理，防止输入性登革热病例引起的本地病例发生。

关键词: 登革热, 白纹伊蚊, 监测, 武汉市

Abstract: Objective To investigate the population density changes of larvae and adults of the dengue vector Aedes albopictus in Wuhan, China, and to provide a scientific basis for the strategy of Aedes vector control. Methods From April to November, 2017, the density of Ae. albopictus larvae was monitored by the Breteau index (BI) method, and that of Ae. albopictus adults was monitored by the double-layered mosquito net method and the light trap method. A database was established using Excel 2013 software. An analysis of variance was performed using SPSS 21.0 software to compare their densities between different habitats and months. The chi-square test was used for comparison of rates. Results A total of 145 Ae. albopictus were captured by light traps; the mean density was 0.52 mosquito/light·night, and the density was highest in parks (0.86 mosquito/light·night) and lowest in rural houses (0.23 mosquito/light·night). A total of 165 water containers positive for Ae. albopictus were found by the BI method; the mean BI was 10.30, and the highest BI (17.00) was observed in July. A total of 213 Ae. albopictus adults were captured by the double-layered mosquito net method; the mean density was 2.22 mosquitoes/net·hour, and the density exhibited a single peak (4.33 mosquitoes/net·hour), which occurred in September. Conclusion The high density and wide distribution of Ae. albopictus in Wuhan indicate that there is a risk of dengue outbreak in the area. It is suggested that relevant authorities should strengthen mosquito vector surveillance and environmental management to prevent local cases caused by imported dengue fever.

Key words: Dengue fever, Aedes albopictus, Surveillance, Wuhan

中图分类号:

柳静, 陈晓敏, 郭慧, 丁浩, 田俊华. 武汉市2017年登革热媒介白纹伊蚊监测分析[J]. 中国媒介生物学及控制杂志, 2020, 31(2): 223-226.

LIU Jing, CHEN Xiao-min, GUO Hui, DING Hao, TIAN Jun-hua. An analysis of surveillance results of the dengue vector Aedes albopictus in Wuhan, China, 2017[J]. Chines Journal of Vector Biology and Control, 2020, 31(2): 223-226.

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