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Field Evaluation of a Push-Pull System to Reduce Malaria Transmission

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Publication Date
2015-04-29
Author
Menger, David J.
Omusula, Philemon
Holdinga, Maarten
Homan, Tobias
Carreira, Ana S.
Vandendaele, Patrice
Derycke, Jean-Luc
Mweresa, Collins K.
Mukabana, Wolfgang Richard
Van Loon, Joop J. A.
Takken, Willem
Type
Article
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Menger DJ, Omusula P, Holdinga M, Homan T, Carreira AS, Vandendaele P, et al. (2015) Field Evaluation of a Push-Pull System to Reduce Malaria Transmission. PLoS ONE 10(4): e0123415. https://doi.org/10.1371/journal.pone.0123415

Abstract/Overview

Malaria continues to place a disease burden on millions of people throughout the tropics, especially in sub-Saharan Africa. Although efforts to control mosquito populations and reduce human-vector contact, such as long-lasting insecticidal nets and indoor residual spraying, have led to significant decreases in malaria incidence, further progress is now threatened by the widespread development of physiological and behavioural insecticide-resistance as well as changes in the composition of vector populations. A mosquito-directed push-pull system based on the simultaneous use of attractive and repellent volatiles offers a complementary tool to existing vector-control methods. In this study, the combination of a trap baited with a five-compound attractant and a strip of net-fabric impregnated with micro-encapsulated repellent and placed in the eaves of houses, was tested in a malaria-endemic village in western Kenya. Using the repellent delta-undecalactone, mosquito house entry was reduced by more than 50%, while the traps caught high numbers of outdoor flying mosquitoes. Model simulations predict that, assuming area-wide coverage, the addition of such a push-pull system to existing prevention efforts will result in up to 20-fold reductions in the entomological inoculation rate. Reductions of such magnitude are also predicted when mosquitoes exhibit a high resistance against insecticides. We conclude that a push-pull system based on non-toxic volatiles provides an important addition to existing strategies for malaria prevention.

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Plos One
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http://ir.jooust.ac.ke:8080/xmlui/handle/123456789/10505
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