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An experimental study of the peridomestic distribution of Lutzomyia longipalpis (Diptera: Psychodidae)

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1994
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An experimental study of the peridomestic distribution of Lutzomyia longipalpis (Diptera: Psychodidae).pdf (403.0xmlui.dri2xhtml.METS-1.0.size-kilobytes)
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http://patua.iec.gov.br/handle/iec/2617
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Quinnell, Rupert J
Dye, Christopher
xmlui.dri2xhtml.METS-1.0.item-abstract
Lutzomyia longipalpis (Lutz & Neiva), the vector of American visceral leishmaniasis (AVL), is much more abundant in animal sheds than in houses on Marajo Island, Para State, Brazil. This difference in abundance is known not to reflect host preference. We show here that it also cannot be explained in terms of variable trapping efficiency, or insecticide application, and we exclude animal sheds as important daytime resting sites. In experimental sheds, the number of L. longipalpis increased markedly with the openness of the walls, though artificially large aggregations of flies could be generated in closed houses by using caged flies and hosts as attractants. We conclude that L. longipalpis tend to congregate at sites outdoors, including animal sheds, because these are the places where leks can most easily form on abundant, stationary (sleeping) and accessible hosts. These results help to explain why the seroprevalence of Leishmania chagasi infection is generally much higher among dogs than humans. They also indicate that human exposure to sandfly bites varies with the quality of house construction.
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QUINNELL, Rupert J.; DYE, Christopher. An experimental study of the peridomestic distribution of Lutzomyia longipalpis (Diptera: Psychodidae). Bulletin of Entomological Research, v. 84, n. 3, p. 379 - 382, 1994.
xmlui.dri2xhtml.METS-1.0.item-decsPrimary
Leishmaniose
Leishmaniose Visceral
Reservatórios de Doenças
Vetores de Doenças
Região Norte (BR)
Ilha do Marajó (PA)
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  • SAPAR - Artigos Científicos

Instituto Evandro Chagas - SVS - MS - 2007-2018 Rodovia BR316 km 7 sn - Levilandia - 67030-000 - Ananindeua - Para - Brasil.
Licença Creative CommonsEste trabalho está licenciado com uma Licença Creative Commons - Atribuição-NãoComercial 4.0 Internacional
Tel: (55 91) 3214-2191
Email: biblioteca@iec.gov.br / clariceneta@iec.gov.br
 

 

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Instituto Evandro Chagas - SVS - MS - 2007-2018 Rodovia BR316 km 7 sn - Levilandia - 67030-000 - Ananindeua - Para - Brasil.
Licença Creative CommonsEste trabalho está licenciado com uma Licença Creative Commons - Atribuição-NãoComercial 4.0 Internacional
Tel: (55 91) 3214-2191
Email: biblioteca@iec.gov.br / clariceneta@iec.gov.br