Objective To understand the distribution status of Aedes aegypti and Ae. albopictus in Leizhou and assess the risk of dengue and Zika virus diseases transmission. Methods From July to August in 2017, using remote sensing technology and geographic information system (GIS), the distributions of Ae. aegypti in Wushi, Qishui and coastal villages of Leizhou, Guangdong province were investigated by larval straw method and mosq-ovitrap method. Results Seventy-nine (79) residential buildings and 23 fishing vessels were investigated in Wushi and 55 residential buildings and 28 fishing vessels in Qishui. There were 34 positive places of Aedes mosquitoes in Wushi, of which 17 were positive for Ae. aegypti, 14 were positive for Ae. albopictus, and 3 were positive for both. There were 17 positive places of Aedes mosquitoes in Qishui, of which 4 were positive for Ae. aegypti and 13 were positive for Ae. albopictus. In total, 308 bodies of water in 15 coastal villages from Liusha to Jijia were investigated and only Ae. albopictus was found without Ae. aegypti. Aedes aegypti mostly breed in water storage containers of residential buildings and fishing vessels, while Ae. albopictus mostly breed in outdoor tires. Conclusion Aedes aegypti was only found in Wushi and Qishui in Leizhou, and its population and distribution range had a decreasing trend. Large-scale wooden fishing vessels in the two towns still had the Ae. aegypti distribution.
CHEN Zong-jing, XING Feng, ZHANG Li-ju, DENG Hui, ZHOU Jing-ya, HUANG Jing-yi, CAI Song-wu, LIU Li-ping, YIN Wei-xiong, WU Jun, LIN Li-feng
. Investigation of distribution of Aedes aegypti and Ae. albopictus in Leizhou, Guangdong province[J]. Chinese Journal of Vector Biology and Control, 2018
, 29(6)
: 590
-593
.
DOI: 10.11853/j.issn.1003.8280.2018.06.009
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