Objective To investigate the Aedes mosquitoes in Tengchong, Yunnan province, China, and to provide evidence for the prevention and control of dengue fever. Methods Breteau index (BI) and container index (CI) were used to monitor the species and density of Aedes larvae in Tengchong from 2014 to 2017. Excel 2007 software was applied for descriptive statistical analysis. Results A total of 21 824 water containers were screened, and 299 out of them were positive for Aedes larvae. The highest positive rate was observed in the used tyre, with a CI of 2.17%(263/12 135). Only Ae. albopictus larvae were found in this study. From 2014 to 2017, the BI was null from January to April and December, the young Aedes mosquitoes were found from May, then reached a peak from August to October (BI was 23.20), and gradually decreased after October. Conclusion The density of Ae. albopictus in Tengchong from June to October is relatively high, suggesting that the local health authorities should strengthen the surveillance on Aedes mosquitoes to prevent local dengue occurrence caused by imported dengue cases.
WANG Jia-zhi, TANG Zong-yan, YIN Shou-qin, WANG Xing-juan, LI Xi-shang
. An analysis of the surveillance results of dengue vector Aedes in Tengchong, Yunnan province, from 2014 to 2017[J]. Chinese Journal of Vector Biology and Control, 2019
, 30(2)
: 206
-208
.
DOI: 10.11853/j.issn.1003.8280.2019.02.022
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