Entomological surveillance and control are essential to the management of dengue fever (DF). Hence, understanding the spatial and temporal patterns of DF vectors, Aedes (Stegomyia) aegypti (L.) and Ae. (Stegomyia) albopictus (Skuse), is paramount. In th

Clements, Archie

Duncombe, Jennifer

Espino, Fe

Hu, Wen-Biao

Marollano, Kristian

Ritchie, Scott

Velazco, Aldwin

Weinstein, Philip

Geospatial health

English

Abstract. Entomological surveillance and control are essential to the management of dengue fever (DF). Hence, under-standing the spatial and temporal patterns of DF vectors, Aedes (Stegomyia) aegypti (L.) and Ae. (Stegomyia) albopictus (Skuse), is paramount. In the Philippines, resources are limited and entomological surveillance and control are generally commenced during epidemics, when transmission is difficult to control. Recent improvements in spatial epidemiological tools and methods offer opportunities to explore more efficient DF surveillance and control solutions: however, there are few examples in the literature from resource-poor settings. The objectives of this study were to: (i) explore spatial patterns of Aedes populations and (ii) predict areas of high and low vector density to inform DF control in San Jose village, Muntinlupa city, Philippines. Fortnightly, adult female Aedes mosquitoes were collected from 50 double-sticky ovitraps (SOs) located in San Jose village for the period June-November 2011. Spatial clustering analysis was performed to identify high and low density clusters of Ae. aegypti and Ae. albopictus mosquitoes. Spatial autocorrelation was assessed by exam-ination of semivariograms, and ordinary kriging was undertaken to create a smoothed surface of predicted vector density in the study area. Our results show that both Ae. aegypti and Ae. albopictus were present in San Jose village during the study period. However, one Aedes species was dominant in a given geographic area at a time, suggesting differing habitat prefer-ences and interspecies competition between vectors. Density maps provide information to direct entomological control activ

Jennifer Duncombe

Fe Espino

Kristian Marollano

Aldwin Velazco

Scott A. Ritchie

Wenbiao Hu

Philip Weinstein

Archie C. A. Clements

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Characterising the spatial dynamics of sympatric Aedes aegypti and Aedes albopictus populations in the Philippines

The Australian National University

Characterising the spatial dynamics of sympatric  Aedes Aegypti  and  Aedes Albopictus  populations in the Philippines

http://www.geospatialhealth.unina.it/articles/v8i1/gh-v8i1-23-duncombe.pdf

Characterising the spatial dynamics of sympatric Aedes Aegypti and Aedes Albopictus populations in the Philippines

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The Australian National University