Barbosa Gerson Laurindo, Lage Mariana de Oliveira, Andrade Valmir Roberto, Gomes Antônio Henrique Alves, Quintanilha Jose Alberto, Chiaravalloti-Neto Francisco
Secretaria de Estado da Saúde. Superintendência de Controle de Endemias. São Paulo, SP, Brasil.
Universidade de São Paulo. Programa de Pós-Graduação em Ciências Ambientais. São Paulo, SP, Brasil.
Rev Saude Publica. 2019 Apr 1;53:29. doi: 10.11606/S1518-8787.2019053000702.
To evaluate whether sites with large amount of potential breeding sites for immature forms of Aedes aegypti, called strategic points, influence in the active vector's dispersion into properties in their surroundings.
We selected four areas in the municipality of Campinas, three of them with strategic points classified as high, moderate, and low risk according to infestation and a control area, without strategic points. Between October 2015 and September 2016, we monthly installed oviposition traps and evaluated the infestation by Ae. aegypti in all properties of each selected area. To verify if there was vector dispersion from each strategic point, based on its location, we investigated the formation of clusters with excess of eggs or larvae or pupae containers, using the Gi spatial statistics.
The amount of eggs collected in the ovitraps and the number of positive containers for Ae. aegypti did not show clusters of high values concerning its distance from the strategic point. Both presented random distribution not spatially associated with the positioning of strategic points in the area.
Strategic points are not confirmed as responsible for the vector's dispersion for properties in their surroundings. We highlight the importance of reviewing the current strategy of the vector control program in Brazil, seeking a balance from the technical, operational, and economic point of view, without disregarding the role of strategic points as major producers of mosquitoes and their importance in the dissemination of arboviruses in periods of transmission.
评估大量存在埃及伊蚊未成熟形态潜在滋生地的地点（即战略要点）是否会影响活跃病媒向其周边房产的扩散。
我们在坎皮纳斯市选取了四个区域，其中三个区域根据感染情况设有高风险、中风险和低风险的战略要点，还有一个对照区域没有战略要点。在2015年10月至2016年9月期间，我们每月设置产卵诱捕器，并评估所选每个区域所有房产中埃及伊蚊的感染情况。为了根据每个战略要点的位置验证是否存在病媒扩散，我们使用Gi空间统计方法调查了卵、幼虫或蛹容器数量过多的聚集情况。
诱蚊产卵器中收集到的卵数量以及埃及伊蚊阳性容器数量，就其与战略要点的距离而言，并未呈现高值聚集。两者均呈现随机分布，在空间上与该区域战略要点的位置无关。
未证实战略要点是导致病媒向其周边房产扩散的原因。我们强调了从技术、操作和经济角度寻求平衡的同时，审查巴西当前病媒控制计划战略的重要性，同时不忽视战略要点作为蚊子主要滋生地的作用及其在虫媒病毒传播期传播中的重要性。
