Temporal and geographic patterns of Aedes aegypti (Diptera: Culicidae) production in Iquitos, Peru
Temporal and geographic patterns of Aedes aegypti (Diptera: Culicidae) production in Iquitos, Peru
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DOI：
10.1603/0022-2585-41.6.1123
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发表时间：
2004-11-01
影响因子：
2.1
通讯作者：
Scott, TV
中科院分区：
文献类型：
--
作者：
Morrison, AC;Gray, K;Scott, TV
对埃及伊蚊的时间和地理变异进行大规模纵向队列研究是必要的。(双翅目：蚊科)生产模式，并制定有针对性的登革热控制战略，以减少疾病。1999年1月至2002年8月期间，我们在秘鲁伊基托斯市的阿纳佐尼亚进行了10次约6,000所房屋的蛹/人口调查。我们对Ae阳性容器的数量进行了量化。利用为该城市开发的地理信息系统，通过4个月的采样电路和地理区域在空间上计算埃及伊蚊幼虫和(或)蛹、盛装蛹的容器和蛹的绝对数量。共鉴定了289941个储水器，其中7.3%的容器Ae阳性。埃及伊蚊。检测了所有变量的时间和地理变化，以及不同容器类型对Ae生产的相对重要性。埃及伊蚊是经过计算的。天哪。型集装箱内检出埃及伊蚊幼虫和蛹。观察到了一致的生产模式：盖子状态(盖子：32%湿容器，2%蛹产量)，容器位置(室外：43%湿容器，85%蛹产量)，容器装水方式(雨灌：15%湿容器，88.3%蛹产量)；这些模式在时间和地理上是一致的。我们描述了一种新的容器类别(非传统)，其中包括瞬时水坑，这是罕见的，但能够产生大量的蛹。由于蚕蛹数量变化较大，除了没有盖上盖子的室外充雨容器外，还应针对四种容器类别(大罐、中储罐、杂箱和非传统容器)。靶向Ae.讨论了埃及伊蚊控制，以及基于已公布但未经测试的阈值实现控制目标的能力。
Large-scale longitudinal cohort studies are necessary to characterize temporal and geographic variation in Aedes aegypti (L.) (Diptera: Culicidae) production patterns and to develop targeted dengue control strategies that will reduce disease. We carried out pupal/ demographic surveys in a circuit of approximate to6,000 houses, 10 separate times, between January 1999 and August 2002 in the Arnazonian city of Iquitos, Peru. We quantified the number of containers positive for Ae. aegypti larvae and/or pupae, containers holdingpupae, and the absolute number of pupae by 4-mo sampling circuits and spatially by geographic area by using a geographic information system developed for the city. A total of 289,941 water-holding containers were characterized, of which 7.3% were positive for Ae. aegypti. Temporal and geographic variations were detected for all variables examined, and the relative importance of different container types for production of Ae. aegypti was calculated. Ae. aegypti larvae and pupae were detected in 64 types of containers. Consistent production patterns were observed for the lid status (lids: 32% wet containers, 2% pupal production), container location (outdoor: 43% wet containers, 85% pupal production), and method by which the container was filled with water (rain filled: 15% wet containers, 88.3% pupal production); these patterns were consistent temporally and geographically. We describe a new container category (nontraditional) that includes transient puddles, which were rare but capable of producing large numbers of pupae. Because of high variable pupal counts, four container categories (large tank, medium storage, miscellaneous, and nontraditional) should be targeted in addition to outdoor rain-filled containers that are not covered by a lid. The utility of targeted Ae. aegypti control is discussed, as well as the ability to achieve control objectives based on published but untested threshold values.