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Characteristics of the Spatial Pattern of the Dengue Vector, Aedes aegypti, in Iquitos, Peru

In: Perspectives on Spatial Data Analysis

Author

Listed:
  • Arthur Getis

    (San Diego State University)

  • Amy C. Morrison

    (University of California, Davis)

  • Kenneth Gray

    (San Diego State University)

  • Thomas W. Scott

    (University of California, Davis)

Abstract

We determine the spatial pattern of Aedes aegypti and the containers in which they develop in two neighborhoods of the Amazonian city of Iquitos, Peru. Four variables were examined: adult Ae. aegypti, pupae, containers positive for larvae or pupae, and all water-holding containers. Adults clustered strongly within houses and weakly to a distance of 30 m beyond the household; clustering was not detected beyond 10 m for positive containers or pupae. Over short periods of time restricted flight range and frequent blood-feeding behavior of Ae. aegypti appear to be underlying factors in the clustering patterns of human dengue infections. Permanent, consistently infested containers (key premises) were not major producers of Ae. aegypti, indicating that larvaciding strategies by themselves may be less effective than reduction of mosquito development sites by source reduction and education campaigns. We conclude that entomologic risk of human dengue infection should be assessed at the household level at frequent time intervals.

Suggested Citation

  • Arthur Getis & Amy C. Morrison & Kenneth Gray & Thomas W. Scott, 2010. "Characteristics of the Spatial Pattern of the Dengue Vector, Aedes aegypti, in Iquitos, Peru," Advances in Spatial Science, in: Luc Anselin & Sergio J. Rey (ed.), Perspectives on Spatial Data Analysis, chapter 0, pages 203-225, Springer.
    • Handle: RePEc:spr:adspcp:978-3-642-01976-0_15
    DOI: 10.1007/978-3-642-01976-0_15
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