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.
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