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Automatic stratification of priority areas for Dengue control using the QGIS Model Builder in multicriteria analysis

Abstract

Objective:

to present a methodological sequence resulting from multicriteria analysis indicating areas with different Aedes aegypti intervention priorities.

Methods:

a Female Aedes Displacement Index (IDFAedes) was created, consolidated according to urban blocks, representing interaction between population densities, Aedes aegypti oviposition sites and dengue case notifications; a graphical model (Model Builder) was developed with QGIS software using the Kernel mapping algorithm and IDFAedes as the weighting factor.

Results:

stratification for the evaluated example - Anápolis, GO, Brazil - indicated intervention priority levels for urban blocks - 17.5%, very low priority; 37.3%, low; 33.6%, medium; 10.2%, high; 1.4%, very high -; blocks with medium, high, and very high priority accounted for 22.53,% of the territory in the area.

Conclusion:

the spatial block method proposed in this article can be included in health surveillance programs for intensified targeting and planning of control actions.

Keywords:
Spatial Analysis; Vector Control; Dengue

Secretaria de Vigilância em Saúde e Ambiente - Ministério da Saúde do Brasil SRTVN Quadra 701, Via W5 Norte, Lote D, Edifício P0700, CEP: 70719-040, +55 61 3315-3464, Fax: +55 61 3315-3464 - Brasília - DF - Brazil
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