ISSN 1003-8280 CN 10-1522/R 中国疾病预防控制中心 主办
Chinese Journal of Vector Biology and Control >
Study of ecological habits of important malaria vectors in epidemic-prone regions of malaria in Yunnan province, China
Received date: 2014-09-01
Online published: 2015-02-20
Supported by
Supported by the National Natural Science Foundation of China(No. 81160357, 30960327, 30660160)and Sino-British Fellowship Trust in UK(No. 313669)
Objective To study the changes in ecological habits of important malaria vectors in the epidemic-prone regions of malaria in Yunnan province, China. Methods Light traps were used to collect mosquitoes in households and cowsheds all night, and human landing collection was used to study the pattern of mosquito activities at night in Jinghong city, Yuanjiang county, Suijiang county, and Longling county. The host source of mosquito blood meal was identified by multiplex PCR analysis. Results A total of 44 635 mosquitoes from 18 species were collected, of which Anopheles sinensis, An. minimus, An. lesteri, An. kunmingensis, and other species accounted for 59.30% (26 468), 5.44% (2428), 0.22% (100), 3.63% (1620), and 31.41% (14 019), respectively. The peaks of night activity for different Anopheles mosquito species were as follows: between 23:00 and 00:00 for An. minimus in Jinghong, between 20:00 and 21:00 for An. sinensis in Jinghong and Yuanjiang, between 02:00 and 03:00 for An. sinensis in Suijiang, and before 22:00 for An. kunmingensis. The expected lifespans of An. sinensis, An. minimus, and An. kunmingensis were relatively long, between 0.90 and 1.00. The human blood indices for An. sinensis, An. minimus, and An. kunmingensis were 0.30, 0.50, and 0.30, respectively. Conclusion The ecological habits of An. minimus, An. sinensis, and An. kunmingensis have changed, and whether these changes lead to alterations in the endemic characteristics of malaria in those regions awaits further investigation.
ZHANG Jing-wei, JIANG Jin-yong, ZENG Xu-can, ZHENG Yu-ting, ZHOU Hong-ning . Study of ecological habits of important malaria vectors in epidemic-prone regions of malaria in Yunnan province, China[J]. Chinese Journal of Vector Biology and Control, 2015 , 26(1) : 47 -50 . DOI: 10.11853/j.issn.1003.4692.2015.01.012
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