interpolación espacial de la abundancia larval de aedes aegypti para localizar focos de infestación spatial interpolation of aedes aegypti larvae abundance for locating infestation foci

Clicks: 349
ID: 186314
2011
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Abstract
OBJETIVO: Diseñar e implementar una metodología de vigilancia que localice los focos de infestación de Aedes aegypti con el empleo de larvitrampas y técnicas de interpolación espacial, las cuales permiten estimar la abundancia vectorial de forma continua en el espacio a partir del conteo de individuos colectados en el área de estudio. MÉTODOS: Se instalaron 228 larvitrampas -a razón de una por manzana- en la zona más densamente poblada de la comuna cinco de Villavicencio (Meta). Con la información regionalizada de la abundancia de larvas se realizaron interpolaciones espaciales con las técnicas polígonos de Voronoi, Kriging ordinario y ponderación de distancias inversas. RESULTADOS: Se presenta una metodología alternativa para la vigilancia del vector del dengue, basada en el uso de larvitrampas y técnicas de interpolación espacial, con las cuales se obtuvieron mapas de superficie sustentados en observaciones puntuales. CONCLUSIONES: Los resultados muestran que esta estrategia aventaja a los índices normalmente usados, dado que permite visualizar de manera continua el nivel de infestación vectorial y por ende el riesgo de transmisión de dengue de acuerdo al grado de infestación por A. aegypti. Es de esperar que su adopción contribuya a planificar, optimizar y evaluar con mayor efectividad las actividades de prevención y control.
OBJECTIVE: Design and implement a surveillance method for locating Aedes aegypti infestation foci with the use of larvae traps and spatial interpolation techniques, which facilitate the ongoing estimation of vector abundance in the area by counting the individuals collected in the study area. METHODs: A total of 228 larvae traps were installed-at a rate of one per block-in the most densely populated area of commune five of Villavicencio (Meta). With regionalized information on larvae abundance, spatial interpolations were conducted with the Voronoi polygon, ordinary kriging, and inverse distance weighting techniques. RESULTS: An alternative method for the surveillance of dengue vectors is presented. This method is based on the use of larvae traps and spatial interpolation techniques to obtain area maps supported by specific observations. CONCLUSIONS: The results show that this strategy is better than the indices normally used, since it facilitates continuous visualization of the level of vector infestation and consequently, the risk of dengue transmission, based on the extent of A. aegypti infestation. Implementation of this strategy is expected to contribute to more effective planning, optimization, and evaluation of prevention and control activities.
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nio2011revistainterpolacin Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Larry Niño
Journal communications on pure and applied analysis
Year 2011
DOI
DOI not found
URL
http://www.scielosp.org/scielo.php?script=sci_arttext&pid=S1020-49892011000600006
Keywords
dengue colombia aedes models statistical risk map tropical medicinepublic aspects of medicine colombiamedicinearctic medicine disease vectors

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