Alarcón Érika Patricia, Segura Ángela María, Rúa-Uribe Guillermo, Parra-Henao Gabriel
Instituto Colombiano de Medicina Tropical, Universidad CES, Sabaneta, Colombia.
Grupo de Epidemiología y Bioestadística, Universidad CES, Sabaneta, Colombia.
Biomedica. 2014 Jul-Sep;34(3):409-24. doi: 10.1590/S0120-41572014000300011.
Aedes (Stegomyia) aegypti is the main vector of dengue. Chemical insecticides have been used to control the mosquito and it has developed resistance. It is necessary to evaluate alternative strategies that are efficient, economical and easy to apply, such as ovitraps with Bacillus thuringiesis israeliensis .
To evaluate the impact of ovitraps loaded with B. t. israeliensis on traditional indexes, as strategies for surveillance and control of A. aegypti .
We selected eight neighborhoods from the municipalities of Apartadó and Carepa. Two neighborhoods in each municipality were chosen for intervention and two for control. The intervention consisted in the installation of ovitraps with B. t. israeliensis in every house. The traps were visited each month between September, 2009, and March, 2010. Traditional indexes were obtained and compared among the neighborhoods. Ovitrap positivity index and egg density index were calculated and we generated density maps.
Five hundred and nineteen ovitraps were placed monthly; 3,114 samples were obtained, from which 76.4% were positive. We collected 501,425 eggs. In Apartadó, statistically significant differences were observed in the house, container and Breteau indexes. The ovitrap positivity index showed high risk of A. aegypti infestation and traditional indexes showed medium and low risk levels.
Ovitraps had an impact on traditional indexes and proved to be useful strategies for surveillance and control of A. aegypti in Urabá, Antioquia.
埃及伊蚊（白纹伊蚊亚属）是登革热的主要传播媒介。化学杀虫剂一直被用于控制这种蚊子，但其已产生抗药性。有必要评估高效、经济且易于应用的替代策略，例如装有以色列芽孢杆菌的诱蚊产卵器。
评估装有以色列芽孢杆菌的诱蚊产卵器对传统指标的影响，作为埃及伊蚊监测和控制的策略。
我们从阿帕塔多和卡雷帕市选取了八个社区。每个市选择两个社区进行干预，两个社区作为对照。干预措施包括在每户人家安装装有以色列芽孢杆菌的诱蚊产卵器。在2009年9月至2010年3月期间，每月对诱蚊产卵器进行检查。获取传统指标并在各社区之间进行比较。计算诱蚊产卵器阳性指数和卵密度指数，并绘制密度图。
每月放置519个诱蚊产卵器；共获得3114个样本，其中76.4%为阳性。我们收集了501425枚卵。在阿帕塔多，房屋指数、容器指数和布雷图指数存在统计学上的显著差异。诱蚊产卵器阳性指数显示埃及伊蚊感染风险高，而传统指标显示为中低风险水平。
诱蚊产卵器对传统指标有影响，并且被证明是安蒂奥基亚省乌拉瓦地区埃及伊蚊监测和控制的有效策略。
