• español
    • English
    • português
  • English 
    • español
    • English
    • português
  • IRIS PAHO Home
  • PAHO website
  • Indexes
  • All Collections
  • About IRIS
  • Institutional Memory
  • Contact
JavaScript is disabled for your browser. Some features of this site may not work without it.
View Item 
  •   IRIS PAHO Home
  • 1.PAHO Headquarters / Sede de la OPS
  • Scientific Journals and Newsletters / Revistas Científicas y Boletines
  • Pan American Journal of Public Health
  • View Item
  •   IRIS PAHO Home
  • 1.PAHO Headquarters / Sede de la OPS
  • Scientific Journals and Newsletters / Revistas Científicas y Boletines
  • Pan American Journal of Public Health
  • View Item

Effects of Permethrin-impregnated bed nets on malaria vectors of northern Guatemala

Thumbnail
View/Open
ev28n2p112.pdf (829.5Kb)
Date
1994
Author
Richards, Frank O
Zea Flores, Rodolfo
Sexton, John D
Beach, Raymond F
Mount, Dwight L
Cordón Rosales, Celia
Gatica, Mario
Klein, Robert E
Metadata
Show full item record
Abstract
8The authors evaluated the effects on malaria vectors of bed nets impregnated with permethrin over the course of a 16-month controlled study in four communities of Northern Guatemala. Anopheles albimanus and An. vestitipennis were the known malaria vectors in the area. Households were allocated to one of three experimental groups: those receiving bed nets impregnated with 500 mg/m2 of permethrim, those receiving untreated bed nets, and those where no intervention measures were taken. The impact of the treated and untreated bed nets on mosquito abundance, behavior, and mortality was determined by indoor/outdoor night-bite mosquito collections, morning pyrethrum spray collections, inspection of bed net surfaces for dead mosquitoes, and capture-release-recapture studies. The duration of the treated nets' residual insecticide effect was assessed by modified WHO cone fiel bioassays, and their pyrethrin content was estimated by gas-liquid chromatography analysis. The most important observation was that fewer mosquitoes were found to be resting in the households with treated bed nets. The treated nets probably functioned by both repelling and killing vector mosquitoes. Capture-release-recapture studies showed exit rated from houses with treated nets were higher (94 percent) than those from control houses (72 percent), a finding that suggests repellency. However, no significant differences were noted between the indoor night-bite mosquito collections at houses with and without treated nets. The horizontal surfaces of treated bed nets were nearly 20 times more likely to contain dead anopheline mosquitoes than were the comparable surfaces of untreated nets. The bioassays indicated that unwashed permethrin-impregnated bed nets retained their insecticidal activity for 6 months after treatment
 
This article will also be published in Spanish in the BOSP. Vol. 117, 1994
 
Series
Bulletin of the Pan American Health Organization (PAHO);28(2),jun. 1994
Subject
Insect Vectors; Anopheles; Mosquito Control; Insecticide Resistance; Malaria; Guatemala
URI
https://iris.paho.org/handle/10665.2/26944
Collections
  • Pan American Journal of Public Health

Related items

Showing items related by title, author, creator and subject.

  • Thumbnail

    Behavioral response of Anopheles darlingi to DDT-sprayed house walls in Amazonia 

    Roberts, Donald R; Alecrim, W.D (1991)
    The behavioral response of Anopheles darlingi females to spraying of house walls with DDT was studied along the Ituxi River in Amazonas, Brazil, using a house sprayed with 2 g DDT per square meter of wall surface and an ...
  • Thumbnail

    Enhanced vector surveillance to control arbovirus epidemics in Colombia 

    Guagliardo, Sarah Anne J.; Ardila Roldan, Susana Carolina; Santacoloma, Liliana; Luna, Cesar; Cordovez Alvarez, Juan Manuel; Rojas Gacha, Juan David; Mansur, Mariana; Levine, Rebecca S.; Lenhart, Audrey; Fuya Oviedo, Patricia (2019-06)
    [ABSTRACT]. In the wake of the Zika epidemic, there has been intensified interest in the surveillance and control of the arbovirus vectors Aedes aegypti and Aedes albopictus, yet many existing surveillance systems could ...
  • Thumbnail

    Efectos del bendiocarb y deltametrina en Anopheles albimanus en una aldea Mexicana 

    Bown, David N; Frederickson, E. Christian; Cabañas, G. del Angel; Mendez, J.F (s.d.)
    The effects of two insecticides on Anopheles albimanus populations were investigated by spraying two blocks of 10 houses each in a village of the state of Chiapas, Mexico, in August 1984. One block was sprayed with bendiocarb ...

Browse

All of IRIS PAHOCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsSeries TitleType of materialLanguageCategoryTechnical Unit/Country OfficeThis CollectionBy Issue DateAuthorsTitlesSubjectsSeries TitleType of materialLanguageCategoryTechnical Unit/Country Office

Statistics

View Usage Statistics

Pan American Health Organization
World Health Organization. Regional Office for the Americas
525 Twenty-third Street, N.W., Washington, D.C. 20037, United States of America
Tel.: +1 (202) 974-3000 Fax: +1 (202) 974-3663
email: libraryhq@paho.org

Links

  • PAHO Featured Publications
  • WHO Digital Library (IRIS)
  • Virtual Health Library (VHL)
  • Global Index Medicus (GIM)