An analysis of emergency surveillance results of Aedes vector before mosquito control in the epidemic areas of dengue fever outbreak in Chongqing, China, 2019
XIAO Han-sen, HE Ya-ming, SHEN Tian-zhanhong, WANG Yi-qi, YANG Xue-fan, TU Tao-tian, JI Heng-qing
Chongqing Center for Disease Control and Prevention, Chongqing 400042, China
Abstract：Objective To investigate the results of emergency surveillance of Aedes vector before mosquito control after the occurrence of the index case of dengue fever in the epidemic areas of Chongqing, China, and to provide a basis for future surveillance of Aedes vector and early warning research on the risk of local transmission of dengue fever. Methods The surveillance data of Aedes vector were collected after the first cases of dengue fever were reported and before the mosquito control measures were adopted in each epidemic area of Chongqing, including Breteau index (BI) and double mosquito net index (DMNI), and SPSS 25.0 software was used for data description and linear regression analysis. Results The average BI for the first-time emergency surveillance in all epidemic areas was 11.01, and the average was 5.10 mosquitoes/net·hour, with a positive correlation between the two indices (r=0.517, P<0.05). The bivariate linear regression analysis was used to establish the regression equation of BI and DMNI:y (BI)=7.07+0.82x (F=61.232, P<0.005), and the early warning of dengue fever risk in Chongqing was stratified into four levels based on this equation. Conclusion Graded assessment of BI and DMNI acts as an indicator for the early warning of dengue fever risk. For Chongqing, BI controlled below 7 and DMNI controlled below 3 mosquitoes/net·hour may reduce the risk of local outbreak of dengue fever.
肖汉森, 何亚明, 沈田展鸿, 王乙棋, 杨雪帆, 涂涛田, 季恒青. 重庆市2019年登革热疫点灭蚊前媒介伊蚊应急监测结果分析[J]. 中国媒介生物学及控制杂志, 2020, 31(3): 268-271.
XIAO Han-sen, HE Ya-ming, SHEN Tian-zhanhong, WANG Yi-qi, YANG Xue-fan, TU Tao-tian, JI Heng-qing. An analysis of emergency surveillance results of Aedes vector before mosquito control in the epidemic areas of dengue fever outbreak in Chongqing, China, 2019. Chines Journal of Vector Biology and Control, 2020, 31(3): 268-271.
[1] Shepard DS,Undurraga EA,Betancourt-Cravioto M,et al. Approaches to refining estimates of global burden and economics of dengue[J]. PLoS Negl Trop Dis,2014,8(11):e3306. DOI:10.1371/journal.pntd.0003306. [2] 何亚明,涂涛田,沈田展鸿,等. 重庆市2018年蚊虫种群分布调查[J]. 中国媒介生物学及控制杂志,2019,30(5):570-573,577. DOI:10.11853/j.issn.1003.8280.2019.05.022. He YM,Tu TT,Shen TZH,et al. An investigation of the distribution of mosquito populations in Chongqing,China,2018[J]. Chin J Vector Biol Control,2019,30(5):570-573,577. DOI:10.11853/j.issn.1003.8280.2019.05.022. [3] 刘起勇. 我国登革热流行新趋势、防控挑战及策略分析[J]. 中国媒介生物学及控制杂志,2020,31(1):1-6. DOI:10.11853/j.issn.1003.8280.2020.01.001. Liu QY. Dengue fever in China:new epidemical trend,challenges and strategies for prevention and control[J]. Chin J Vector Biol Control,2020,31(1):1-6. DOI:10.11853/j.issn.1003.8280.2020. 01.001. [4] Khetarpal N,Khanna I. Dengue fever:causes,complications,and vaccine strategies[J]. J Immunol Research,2016,2016:6803098. DOI:10.1155/2016/6803098. [5] 马敏,徐明,易波,等. 登革热暴发后媒介伊蚊的应急监测[J]. 中国媒介生物学及控制杂志,2019,30(4):374-378. DOI:10.11853/j.issn.1003.8280.2019.04.004. Ma M,Xu M,Yi B,et al. Emergency surveillance of vector Aedes after a dengue outbreak[J]. Chin J Vector Biol Control,2019,30(4):374-378. DOI:10.11853/j.issn.1003.8280.2019.04.004. [6] Shen JC,Luo L,Li L,et al. The impacts of mosquito density and meteorological factors on dengue fever epidemics in Guangzhou,China,2006-2014:a time-series analysis[J]. Biomed Environ Sci,2015,28(5):321-329. DOI:10.3967/bes2015.046. [7] 陈珺芳,王哲,孙昼,等. 杭州市登革热核心区蚊媒应急处置效果分析[J]. 预防医学,2019,31(10):1078-1080. DOI:10.19485/j.cnki.issn2096-5087.2019.10.028. Chen JF,Wang Z,Sun Z,et al. Analysis of emergency treatment effects of mosquito vector in the core area of dengue fever in Hangzhou[J]. Prev Med,2019,31(10):1078-1080. DOI:10.19485/j.cnki.issn2096-5087.2019.10.028. [8] Tsai PJ,Teng HJ. Role of Aedes aegypti (Linnaeus) and Aedes albopictus (Skuse) in local dengue epidemics in Taiwan[J]. BMC Infect Dis,2016,16:662. DOI:10.1186/s12879-016-2002-4. [9] 梁琳琳,张金宇,李晓宁,等. 2016-2017年广州市蚊媒应急队与各区疾病预防控制中心白纹伊蚊监测比较分析[J]. 中国媒介生物学及控制杂志,2019,30(4):464-468. DOI:10.11853/j.issn.1003.8280.2019.04.027. Liang LL,Zhang JY,Li XN,et al. A comparative analysis of Aedes albopictus surveillance between Guangzhou emergency mosquito vector control team and district CDCs in 2016-2017[J]. Chin J Vector Biol Control,2019,30(4):464-468. DOI:10.11853/j.issn.1003.8280.2019.04.027. [10] Liu KK,Wang T,Huang XD,et al. Risk assessment of dengue fever in Zhongshan,China:a time-series regression tree analysis[J]. Epidemiol Infect,2017,145(3):451-461. DOI:10.1017/S095026881600265X. [11] 闫冬明,黄坤,赵春春,等. 常用蚊虫监测方法和技术研究进展[J]. 中国媒介生物学及控制杂志,2020,31(1):108-112. DOI:10.11853/j.issn.1003.8280.2020.01.023. Yan DM,Huang K,Zhao CC,et al. Research advances in common methods and techniques for mosquito surveillance[J]. Chin J Vector Biol Control,2020,31(1):108-112. DOI:10.11853/j.issn.1003.8280.2020.01.023. [12] Sang SW,Yin WW,Bi P,et al. Predicting local dengue transmission in Guangzhou,China,through the influence of imported cases,mosquito density and climate variability[J]. PLoS One,2014,9(7):e102755. DOI:10.1371/journal.pone. 0102755. [13] Hii YL,Zaki RA,Aghamohammadi N,et al. Research on climate and dengue in Malaysia:a systematic review[J]. Curr Environ Health Rpt,2016,3(1):81-90. DOI:10.1007/s40572-016-0078-z. [14] 林良强,张韶华,梁焯南,等. 深圳市登革热风险指数建立和应用评估[J]. 中华卫生杀虫药械,2018,24(1):29-32. DOI:10.19821/j.1671-2781.2018.01.010. Lin LQ,Zhang SH,Liang ZN,et al. Establishment and assessment of a graded early warning system for dengue fever in Shenzhen[J]. Chin J Hyg Insect Equip,2018,24(1):29-32. DOI:10.19821/j.1671-2781.2018.01.010. [15] Sunahara T. Simulation study of the effects of host availability on bite rate of Aedes albopictus (Skuse) (Diptera:Culicidae) and risk of dengue outbreaks in non-endemic areas[J]. Jpn J Infect Dis,2018,71(1):28-32. DOI:10.7883/yoken.JJID.2017.312. [16] Tsuda Y,Maekawa Y,Ogawa K,et al. Biting density and distribution of Aedes albopictus during the September 2014 outbreak of dengue fever in Yoyogi park and the Vicinity of Tokyo Metropolis,Japan[J]. Jpn J Infect Dis,2016,69(1):1-5. DOI:10.7883/yoken.JJID.2014.576. [17] 段金花,林立丰,蔡松武,等. 城镇登革热分级预警与应对指标的建立研究[J]. 中国媒介生物学及控制杂志,2009,20(1):51-54. Duan JH,Lin LF,Cai SW,et al. Study on the stepwise responses for risk categories for dengue fever vector[J]. Chin J Vector Biol Control,2009,20(1):51-54.
2020, Vol. 31 
