Document Detail


Characterization of Aedes aegypti (Diptera: Culcidae) production sites in urban Nicaragua.
MedLine Citation:
PMID:  17915519     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
To characterize the production patterns of the dengue virus vector Aedes aegypti (L.) (Diptera: Culcidae), pupal surveys were conducted in selected neighborhoods of two major cities in Nicaragua. In León, 833 houses were visited in July and September 2003, corresponding to the beginning and middle of the dengue season; in Managua, 1,365 homes were visited in July 2003. In total, 7,607 containers were characterized, of which 11% were positive for Ae. aegypti larvae and 4% for pupae. In addition to barrels, potted plants and superficial water on tarps and in puddles were identified as highly productive sites. Univariate and multivariate analysis revealed frequency of container use, use of a lid, and rainwater filling as key variables affecting pupal positivity. Importantly, this survey demonstrated the risk associated with the presence of lids, the limited temporal efficacy of temephos, and the lack of association of water availability with risky water storage practices. Finally, we introduce the concept of an efficiency value and an accompanying graphical display system that can facilitate development of targeted pupal control strategies. These data underscore the importance of entomological surveillance of pupal productivity to gather information from which to derive streamlined, efficient, and effective vector control measures to reduce the density of Aedes mosquito larvae and pupae and thus the risk for dengue.
Authors:
Samantha N Hammond; Aubree L Gordon; Emperatriz del C Lugo; Gilberto Moreno; Guillermina M Kuan; María M López; Josefa D López; Marco A Delgado; Sonia I Valle; Perla M Espinoza; Eva Harris
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of medical entomology     Volume:  44     ISSN:  0022-2585     ISO Abbreviation:  J. Med. Entomol.     Publication Date:  2007 Sep 
Date Detail:
Created Date:  2007-10-05     Completed Date:  2008-08-29     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0375400     Medline TA:  J Med Entomol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  851-60     Citation Subset:  IM    
Affiliation:
Division of Infectious Diseases, School of Public Health, University of California, Berkeley, CA 94720-7360, USA.
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MeSH Terms
Descriptor/Qualifier:
Aedes / physiology*
Animals
Breeding
Fresh Water / parasitology
Insect Vectors / physiology*
Insecticides / pharmacology
Larva / drug effects,  physiology
Logistic Models
Mosquito Control / methods
Nicaragua
Population Density
Population Surveillance
Pupa / physiology
Risk Factors
Temefos / pharmacology
Urban Population
Chemical
Reg. No./Substance:
0/Insecticides; 3383-96-8/Temefos

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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