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Changing paradigms in Aedes control: considering the spatial heterogeneity of dengue transmission/Cambio de paradigma en el control de Aedes: consideracion de la heterogeneidad espacial de la transmision del dengue

Current dengue vector control strategies, focusing on reactive implementation of insecticide-based interventions in response to clinically apparent disease manifestations, tend to be inefficient, short-lived, and unsustainable within the worldwide epidemiological scenario of virus epidemic recrudesc...

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Published in:Revista panamericana de salud pública 2017-12, Vol.41 (8)
Main Authors: Alexander, Neal, Van der Stuyft, Patrick, Gomez-Dantes, Hector, Toledo, Maria Eugenia, Vanlerberghe, Veerle, Coelho, Giovanini, Ocampo, Clara B, Vazquez-Prokopec, Gonzalo, Manrique-Saide, Pablo
Format: Article
Language:Spanish
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Summary:Current dengue vector control strategies, focusing on reactive implementation of insecticide-based interventions in response to clinically apparent disease manifestations, tend to be inefficient, short-lived, and unsustainable within the worldwide epidemiological scenario of virus epidemic recrudescence. As a result of a series of expert meetings and deliberations, a paradigm shift is occurring and a new strategy, using risk stratification at the city level in order to concentrate proactive, sustained efforts in areas at high risk for transmission, has emerged. In this article, the authors 1) outline this targeted, proactive intervention strategy, within the context of dengue epidemiology, the dynamics of its transmission, and current Aedes control strategies, and 2) provide support from published literature for the need to empirically test its impact on dengue transmission as well as on the size of disease outbreaks. As chikungunya and Zika viruses continue to expand their range, the need for a science-based, proactive approach for control of urban Aedes spp. mosquitoes will become a central focus of integrated disease management planning. Key words Dengue; epidemiology; Aedes; vector control; Belgium; Brazil; Colombia; Cuba; Mexico; Peru; Caribbean region; Latin America. Las estrategias actuales de control de vectores del dengue, centradas en la ejecucion reactiva de intervenciones con insecticidas en respuesta a la aparicion de cuadros clinicos evidentes de la enfermedad, suelen ser ineficientes, de duracion limitada e insostenibles en el contexto epidemiologico mundial, caracterizado por la recrudescencia de las epidemias virales. Como resultado de una serie de reuniones y deliberaciones entre expertos, esta en proceso un cambio de paradigma y ha surgido una nueva estrategia, que consiste en estratificar el riesgo de cada ciudad para concentrar y mantener los esfuerzos proactivos donde hay un alto riesgo de transmision. En este articulo, los autores 1) describen esta estrategia de intervencion especifica y proactiva dentro del contexto de las caracteristicas epidemiologicas del dengue, la dinamica de su transmision y las estrategias actuales de control de Aedes y 2) fundamentan con fuentes bibliograficas la necesidad de demostrar empiricamente las repercusiones de esta estrategia sobre la transmision del dengue y el tamano de los brotes. Dado que los virus del chikunguna y el Zika siguen ampliando su alcance, uno de los objetivos primordiales de la pla
ISSN:1020-4989