An investigation of the breeding of Aedes on the rooftops of residential buildings in the core area of dengue fever focus in Yuexiu district of Guangzhou, China
1 Yuexiu District Center for Disease Control and Prevention, Guangzhou 510055, Guangdong Province, China; 2 Guangzhou Yong Liang Environmental Technology Service Company
Abstract:Objective To investigate the breeding of Aedes on rooftops of residential buildings in the core area of dengue hotspots in Yuexiu district of Guangzhou, China, and to provide a basis for scientific surveillance and control of Aedes vector. Methods From January 2018 to August 2019, an investigation was performed for the general information and breeding of Aedes on rooftops of residential buildings in the core area of dengue hotspots in Yuexiu district. EpiData 3.0 software was used for data entry, and SPSS 21.0 software was used for statistical analysis. The chi-square test was used for comparison of the positive breeding rate of Aedes between different rooftops, and a logistic regression analysis was used to identify the influencing factors for the positive breeding rate of Aedes on rooftops. Results Among the 414 rooftops inspected, 154 (37.20%) were positive for Aedes, with a container index of 34.27% (439/1 281). There was no significant difference in the positive breeding rate of Aedes on rooftops between high buildings and low buildings (χ2=0.839, P=0.360). Rooftops used for other purposes had a significantly higher positive breeding rate of Aedes than those not used for other purposes[41.36% (122/295) vs 26.89% (32/119), χ2=7.595, P=0.006]. Cultivation of flowers or vegetables, enclosure for living, and storage of sundries increased the risk of breeding of Aedes. Positive breeding was mainly observed in water containers or idle containers, accounting for 47.61% (209/439), followed by water plants (107/439, 24.37%), rubbish (84/439, 19.13%), and other things (39/439, 8.88%). Conclusion Rooftops are important breeding sites for Aedes and are often neglected. The breeding of Aedes on rooftops should be taken seriously when developing the measures for mosquito control and effectiveness evaluation.
钟雪珊, 刘志明, 彭剑泉, 梁戈阳, 饶思惠, 黄亮宇. 广州市越秀区登革热疫点核心区居民楼天台伊蚊孳生情况调查[J]. 中国媒介生物学及控制杂志, 2020, 31(6): 722-725.
ZHONG Xue-shan, LIU Zhi-ming, PENG Jian-quan, LIANG Ge-yang, RAO Si-hui, HUANG Liang-yu. An investigation of the breeding of Aedes on the rooftops of residential buildings in the core area of dengue fever focus in Yuexiu district of Guangzhou, China. Chines Journal of Vector Biology and Control, 2020, 31(6): 722-725.
[1] Guzman MG,Harris E. Dengue[J]. Lancet,2015,385(9966):453-465. DOI:10.1016/S0140-6736(14)60572-9. [2] 杜晓云,李晓宁,杨智聪. 2010-2016年广州市伊蚊孳生容器及容器指数与气象因素的关系[J]. 中华疾病控制杂志,2018,22(9):972-974. DOI:10.16462/j.cnki.zhjbkz.2018.09.024. Du XY,Li XN,Yang ZC. Mosquito breeding container and relationship between container index and meteorological factors in Guangzhou from 2010 to 2016[J]. Chin J Dis Control Prev,2018,22(9):972-974. DOI:10.16462/j.cnki.zhjbkz.2018.09.024. [3] Ferdousi F,Yoshimatsu S,Ma E,et al. Identification of essential containers for Aedes larval breeding to control dengue in Dhaka,Bangladesh[J]. Trop Med Health,2015,43(4):253-264. DOI:10.2149/tmh.2015-16. [4] Montgomery BL,Ritchie SA. Roof gutters:a key container for Aedes aegypti and Ochlerotatus notoscriptus (Diptera:Culicidae) in Australia[J]. Am J Trop Med Hyg,2002,67(3):244-246. DOI:10.4269/ajtmh.2002.67.244. [5] Dhar-Chowdhury P,Haque CE,Lindsay R,et al. Socioeconomic and ecological factors influencing Aedes aegypti prevalence,abundance,and distribution in Dhaka,Bangladesh[J]. Am J Trop Med Hyg,2016,94(6):1223-1233. DOI:10.4269/ajtmh.15-0639. [6] Zahouli JBZ,Koudou BG,Müller P,et al. Urbanization is a main driver for the larval ecology of Aedes mosquitoes in arbovirus-endemic settings in south-eastern Cote d'Ivoire[J]. PLoS Negl Trop Dis,2017,11(7):e0005751. DOI:10.1371/journal.pntd. 0005751. [7] 罗雷. 广州地区登革热自然疫源地及传播流行演变模式研究[D]. 广州:南方医科大学,2012. Luo L. The study of natural epidemic focus and transmission evolution model of dengue fever in Guangzhou[D]. Guangzhou:Southern Medical University,2012. [8] Zhu GH,Xiao JP,Liu T,et al. Spatiotemporal analysis of the dengue outbreak in Guangdong province,China[J]. BMC Infect Dis,2019,19:493. DOI:10.1186/s12879-019-4015-2. [9] 陈红,吕敏,邢莲弟,等. 上海市静安区不同房屋类型白纹伊蚊孳生特点研究[J]. 中国媒介生物学及控制杂志,2019,30(5):536-539. DOI:10.11853/j.issn.1003.8280.2019.05.013. Chen H,Lyu M,Xing LD,et al. A study of the breeding characteristics of Aedes albopictus in different housing types in Jing'an district of Shanghai,China[J]. Chin J Vector Biol Control,2019,30(5):536-539. DOI:10.11853/j.issn.1003.8280.2019.05.013. [10] 潘捷云,蔡振练,凌远理,等. 广州市海珠区2015年工地伊蚊孳生情况分析[J]. 中国热带医学,2016,16(6):577-579. DOI:10.13604/j.cnki.46-1064/r.2016.06.16. Pan JY,Cai ZL,Ling YL,et al. Investigation on status of Aedes breeding in construction sites in Haizhu district of Guangzhou city in 2015[J]. China Trop Med,2016,16(6):577-579. DOI:10.13604/j.cnki.46-1064/r.2016.06.16. [11] 李意兰,马钰,陈宗遒,等. 广州市不同居住地类型与登革热本地感染风险分析[J]. 热带医学杂志,2018,18(9):1214-1217. Li YL,Ma Y,Chen ZQ,et al. Infection risk analysis on the residence types of indigenous dengue cases in Guangzhou[J]. J Trop Med,2018,18(9):1214-1217. [12] 王韶华,武峥嵘,董腾飞,等. 白纹伊蚊幼虫布雷图指数与居民住宅楼层的关系[J]. 上海预防医学,2019,31(8):620-622. Wang SH,Wu ZR,Dong TF,et al. Comparative analysis on relationship between Breteau index and storey in Aedes albopictus L. surveillance[J]. Shanghai J Prev Med,2019,31(8):620-622. [13] Wong GKL,Jim CY. Do vegetated rooftops attract more mosquitoes? Monitoring disease vector abundance on urban green roofs[J]. Sci Total Environ,2016,573:222-232. DOI:10.1016/j.scitotenv.2016.08.102. [14] 徐尔烈,张念台,吴怀慧,等. 台湾地区登革热大流行及病媒蚊综合防治[J]. 中华卫生杀虫药械,2015,21(1):1-6. DOI:10.19821/j.1671-2781.2015.01.002. Xu EL,Zhang NT,Wu HH,et al. Dengue fever outbreak and vectors control in Taiwan[J]. Chin J Hyg Insect Equip,2015,21(1):1-6. DOI:10.19821/j.1671-2781.2015.01.002.