Dengue Vectors and their Spatial Distribution.

Dengue Vectors and their Spatial Distribution.
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DOI:
10.2149/tmh.2011-s04
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发表时间:
2011-12
影响因子:
4.5
通讯作者:
Higa Y
Higa Y
中科院分区:
其他
文献类型:
--
作者:
Higa Y

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登革热病媒的分布,Ae.Aegypti和Ae.白纹伊蚊,受气候因素影响。此外,由于它们的生命周期很好地适应了人类环境,城市化等人类活动引起的环境变化对媒介的分布产生了很大的影响。Ae.的不同反应。埃及白纹伊蚊和白纹伊蚊对不同的环境具有不同的空间分布特征,表现为南北梯度、城乡梯度、室内和室外空间分布的差异。在南北梯度中,与生存相关的气候是空间分布的一个重要因素。在城乡梯度中,不同的分布反映了成人生态位的差异,并受到地理和人为因素的影响。这两个物种对房屋周围环境的直接反应与室内和室外空间分布的不同有关。登革热病毒主要在人和媒介蚊子之间传播,媒介的存在是传播的限制因素。因此,登革热病媒的空间分布是该疾病流行病学中的一个重要问题。目前的技术,如地理信息系统、卫星图像和统计模型,使研究人员能够预测不断变化的环境中矢量的空间分布。虽然很难确定环境和气候变化对媒介数量和媒介传播疾病的实际影响,但人类造成的环境变化和气候变化导致的人类行为变化可以预期对登革热媒介产生影响。因此,有必要对登革热病媒和病毒进行纵向监测。
The distribution of dengue vectors, Ae. aegypti and Ae. albopictus, is affected by climatic factors. In addition, since their life cycles are well adapted to the human environment, environmental changes resulting from human activity such as urbanization exert a great impact on vector distribution. The different responses of Ae. aegypti and Ae albopictus to various environments result in a difference in spatial distribution along north-south and urban-rural gradients, and between the indoors and outdoors. In the north-south gradient, climate associated with survival is an important factor in spatial distribution. In the urban-rural gradient, different distribution reflects a difference in adult niches and is modified by geographic and human factors. The direct response of the two species to the environment around houses is related to different spatial distribution indoors and outdoors. Dengue viruses circulate mainly between human and vector mosquitoes, and the vector presence is a limiting factor of transmission. Therefore, spatial distribution of dengue vectors is a significant concern in the epidemiology of the disease. Current technologies such as GIS, satellite imagery and statistical models allow researchers to predict the spatial distribution of vectors in the changing environment. Although it is difficult to confirm the actual effect of environmental and climate changes on vector abundance and vector-borne diseases, environmental changes caused by humans and human behavioral changes due to climate change can be expected to exert an impact on dengue vectors. Longitudinal monitoring of dengue vectors and viruses is therefore necessary.