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	Spatial-Temporal Variation and Primary Ecological Drivers of Anopheles sinensis Human Biting Rates in Malaria Epidemic-Prone Regions of China
	Ren Z. P.; Wang, D. Q.; Hwang, J.; Bennett, A.; Sturrock, H. J. W.; Ma, A. M.; Huang, J. X.; Xia, Z. G.; Feng, X. Y.; Wang, J. F.
	2015
关键词	insecticide-treated nets sub-saharan africa information-systems multilevel analysis transmission vectors management gambiae model kenya
英文摘要	Background Robust malaria vector surveillance is essential for optimally selecting and targeting vector control measures. Sixty-two vector surveillance sites were established between 2005 and 2008 by the national malaria surveillance program in China to measure Anopheles sinensis human biting rates. Using these data to determine the primary ecological drivers of malaria vector human biting rates in malaria epidemic-prone regions of China will allow better targeting of vector control resources in space and time as the country aims to eliminate malaria. Methods We analyzed data from 62 malaria surveillance sentinel sites from 2005 to 2008. Linear mixed effects models were used to identify the primary ecological drivers for Anopheles sinensis human biting rates as well as to explore the spatial-temporal variation of relevant factors at surveillance sites throughout China. Results Minimum semimonthly temperature (beta = 2.99; 95% confidence interval (CI) 2.07-3.92), enhanced vegetation index (beta = 1.07; 95% CI 0.11-2.03), and paddy index (the percentage of rice paddy field in the total cultivated land area of each site) (beta = 0.86; 95% CI 0.17-1.56) were associated with greater An. Sinensis human biting rates, while increasing distance to the nearest river was associated with lower An. Sinensis human biting rates (beta = -1.47; 95% CI -2.88, -0.06). The temporal variation (sigma(2)(t0) = 1: 35) in biting rates was much larger than the spatial variation (sigma(2)(s0) = 0: 83), with 19.3% of temporal variation attributable to differences in minimum temperature and enhanced vegetation index and 16.9% of spatial variance due to distance to the nearest river and the paddy index. Discussion Substantial spatial-temporal variation in An. Sinensis human biting rates exists in malaria epidemic-prone regions of China, with minimum temperature and enhanced vegetation index accounting for the greatest proportion of temporal variation and distance to nearest river and paddy index accounting for the greatest proportion of spatial variation amongst observed ecological drivers. Conclusions Targeted vector control measures based on these findings can support the ongoing malaria elimination efforts in China more effectively.
出处	Plos One
卷	10
期	1
收录类别	SCI
语种	英语
ISSN号	1932-6203
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/38824]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Ren Z. P.,Wang, D. Q.,Hwang, J.,et al. Spatial-Temporal Variation and Primary Ecological Drivers of Anopheles sinensis Human Biting Rates in Malaria Epidemic-Prone Regions of China. 2015.

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