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目的了解郴州市登革热相关蚊媒密度动态及登革热病毒感染情况、人群抗体水平,为预测登革热(DV)暴发流行提供基础资料,以便及早采取干预措施。方法收集血清学、登革热蚊媒等监测资料并加以分析。结果健康人群血清323份,DV-IgG抗体阳性的16例,总阳性率为4.95%,2008年阳性率为1.26%,2009年阳性率为8.54%;蚊幼监测,各监测点5-10月份平均阳性率均超过5%,成蚊监测,2008年白蚊伊蚊密度为0.09只/h,2009年为0.45只/h,媒介孳生地调查仅发现白纹伊蚊,未发现埃及伊蚊。结论登革热在郴州市部分地区仍存在登革热流行的危险性,需要采取切实有效的预防控制措施,以防止登革热的局部暴发流行。
Objective To know the density of mosquitoes associated with dengue in Chenzhou and the prevalence of dengue virus infection and population antibody in Dengzhou and provide the basic information for forecasting the outbreak of dengue fever in order to take early intervention. Methods Serological data, mosquito vectors of dengue and other monitoring data were collected and analyzed. Results The results showed that there were 323 serum samples and 16 DV-IgG positive samples, the total positive rate was 4.95%, the positive rate was 1.26% in 2008, and the positive rate was 8.54% in 2009; The average positive rate was over 5%. Mosquitoes were monitored. In 2008, the density of Aedes albopictus in mosquitoes was 0.09 / h, and in 2009 it was 0.45 / h. Only Aedes albopictus was found in media breeding sites, and Aedes aegypti was not detected. Conclusion Dengue fever is still at risk of dengue fever in some areas of Chenzhou City, and effective prevention and control measures need to be taken to prevent the local outbreak of dengue fever.