The Buen Pastor cemetery in Trujillo, Venezuela: measuring dengue vector output from a public area
The Buen Pastor cemetery in Trujillo, Venezuela: measuring dengue vector output from a public area
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DOI：
10.1111/j.1365-3156.2005.01428.x
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发表时间：
2005-06-01
影响因子：
3.3
通讯作者：
Kroeger, A
中科院分区：
文献类型：
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作者：
Abe, M;McCall, PJ;Kroeger, A
由于登革热病媒控制通常针对单个家庭，以消除繁殖场所或在流行期间控制成蚊，公共空间往往被忽视。为了调查这些地方作为登革热病媒来源的重要性，2003年5月在雨季对委内瑞拉北方一个墓地的埃及伊蚊繁殖力进行了研究，采用了评估登革热病媒侵扰的标准昆虫学指数。在72.8%的坟墓上发现了容器; 44%的容器盛有水，其中46.9%的容器中我们发现了A。埃及伊蚊幼虫和/或蛹。受伊蚊感染的容器的平均密度为每公顷39个。容器类型（花瓶、花盆或其他）或材料（水泥、塑料、玻璃等）之间的侵染率无显著差异。装有1-5升水的容器中含有墓地中发现的最大比例的脓液（46.7%）;装有< 100毫升水的容器中不含脓液。墓地中产生的平均puplets数量估计为4185 puplets/ha/48 h，整个墓地的潜在病媒蚊子日产量计算为每天约3000只雌性。据推测，这些蚊子离开墓地到附近社区觅食，从而阻碍了减少家庭登革热病媒侵扰的环境管理和健康教育方案。这项研究表明，公共场所作为城市地区登革热病媒来源的重要性，以及将这些场所纳入病媒控制方案的必要性。
As vector control of dengue typically targets individual households to eliminate breeding sites or control adult mosquitoes during epidemics, public spaces are frequently neglected. To investigate the importance of such places as sources of dengue vectors, a study of Aedes aegypti productivity in a cemetery in northern Venezuela, using standard entomological indices for assessing dengue vector infestations, was carried out in the wet season in May 2003. Containers were found on 72.8% of graves; 44% of the containers held water and in 46.9% of these we found A. aegypti larvae and/or pupae. The average density of Aedes-infested containers was 39 per hectare. There were no significant differences in infestation rates between container types (vases, planters or others) or materials (cement, plastic, glass, etc.). Containers with 1-5 l of water held the greatest proportion of the pupae found in the cemetery (46.7%); containers with < 100 ml of water contained no pupae. The mean number of pupae produced in the cemetery was estimated at 4185 pupae/ha per 48 h and the daily output of potential vector mosquitoes from the entire cemetery was calculated at approximately 3000 females per day. These mosquitoes presumably left the cemetery to feed in the nearby communities, thus thwarting the environmental management and health education programmes that had reduced household dengue vector infestations. The study shows the importance of public places as sources of dengue vectors in urban areas, and the need to include such areas in vector control programmes.