2006年雷州市登革热蚊媒监测分析

目的分析2006年雷州市登革热的疫情动态与蚊媒密度变化情况，为雷州市登革热流行趋势的预测、预警和制定防治对策及措施提供科学依据。方法收集2006年原登革热流行区的人群抗体水平和媒介伊蚊等监测资料进行综合分析。结果全年共采集血清标本192份，其中在发热患者血标本中检出登革热病毒IgM阳性1份，流行后期健康人群血标本中登革热病毒IgO阳性3份。检测蚊媒标本50只均未分离出登革热病毒。蚊幼虫的平均布雷图指数、容器指数、房屋指数、千人指数分别为10．48、4．01、9．61、24．85。白纹伊蚊广泛分布且密度高，在原登革热流行区为优势蚊种。结论雷州市白纹伊蚊种群密度较高，存在登革热暴发流行的高度危险性，务必加强监测，预防病原输入而引起暴发流行。

Analysis and monitoring of dengue fever vector in Leizhou city in 2006

Objective To analyze the epidemic situation dynamics of dengue fever and the density change of mosquito in Leizhou city in 2006,and provide scientific evidence for early warning of dengue fever and the establishment of control strategy.Methods The data about population antibody level and Aedes collected from former dengue fever prevalence area was analyzed in 2006.Results 192 serum samples were collected.Of them,one sample collected from feverish patients was positive and 3 samples collected from health persons were also positive on late stage of prevalence.In addition,none was positive among 50 Aedes mosquito.The average Breteau index,Container index,House index and thousand-person index were 10.48,4.01,9.61 and 24.85,respectively.Aedes albopictus was the dominant species in the former prevalence area,which widely distributed and had high density.Conclusion The population density of Ae.albopictus was higher in Leizhou city and the outbreak of dengue fever had high risk.Thus,the monitoring should be strengthened to prevent the introduce of pathogen and the outbreak of this disease.