Use of a geographic information system for defining spatial risk for dengue transmission in Bangladesh:: Role for Aedes albopictus in an urban outbreak
Use of a geographic information system for defining spatial risk for dengue transmission in Bangladesh:: Role for Aedes albopictus in an urban outbreak
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DOI：
10.4269/ajtmh.2003.69.634
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发表时间：
2003-12-01
影响因子：
3.3
通讯作者：
Breiman, RF
中科院分区：
文献类型：
--
作者：
Ali, M;Wagatsuma, Y;Breiman, RF
我们使用传统的和空间的分析工具，以描述传播模式在社区范围内爆发的登革热和登革出血热在达卡，孟加拉国在2000年。进行了全面的家庭一级蚊媒调查和访谈，以获得关于蚊子种类和繁殖以及与登革热一致的疾病的数据。在该市的一个独特地区观察到登革热疾病和高密度病媒种群的集群。在远离大医院的地区，登革热集群不太容易识别，这表明是否接近医院决定了登革热病例的诊断。集中在这些地区相对接近医院，我们发现登革热集群和媒介种群之间的空间关联。与未报告病例的家庭相比，报告最近发生登革热疾病的家庭更有可能在家中发现白纹伊蚊幼虫。最近报告登革热疾病的家庭也更有可能有一个邻居患有Ae。白纹伊蚊出现在家中。相比之下，在房屋内以及邻居家中（50米以内）存在埃及伊蚊与登革热疾病无关。考虑到Ae的繁殖栖息地。albopictus与Ae的有些不同。在埃及，这项研究的结果对控制登革热在这个城市环境中的传播有影响，因为大部分的重点都放在室内蚊子的繁殖和传播上。公共卫生官员可能会发现疾病-环境地图对规划有针对性的干预措施很有用，因为它显示了传播最严重的地区。
We used conventional and spatial analytical tools to characterize patterns of transmission during a community-wide outbreak of dengue fever and dengue hemorrhagic fever in Dhaka, Bangladesh in 2000. A comprehensive household-level mosquito vector survey and interview was conducted to obtain data on mosquito species and breeding as well as illness consistent with dengue. Clusters of dengue illnesses and high-density vector populations were observed in a distinct sector of the city. Dengue clusters are less identifiable in areas further away from major hospitals, suggesting that proximity to hospitals determines whether cases of dengue are diagnosed. Focusing on those areas relatively close to hospitals, we found a spatial association between dengue clusters and vector populations. Households reporting a recent dengue illness were more likely to have Aedes albopictus larvae present in the home when compared with households not reporting cases. Households reporting a recent dengue illness were also more likely to have a neighbor with Ae. albopictus present in the home. In contrast, the presence of Aedes aegypti within the premises as well as the homes of neighbors (within 50 meters) was not associated with dengue illness. Given that the breeding habitats for Ae. albopictus are somewhat distinct from those of Ae. aegypti, the findings of this study have implications for control of dengue transmission in this urban setting where much of the focus has been on indoor mosquito breeding and transmission. Public health officials may find the disease-environment map useful for planning targeted interventions because it displays areas where transmission is most intense.