Insecticidal roof barriers mounted on untreated bed nets can be as effective against Anopheles gambiae as regular insecticide-treated bed nets

Abstract Barrier bednets (BBnets), regular bednets with a vertical insecticidal panel to target mosquitoes above the bednet roof, where they are most active, have the potential to improve existing Insecticidal Treated Bednets (ITNs), by reducing the quantity of insecticide required per net, reducing...

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Main Authors: Anthony J. Abbott, Agnes Matope, Jeff Jones, Vitaly Voloshin, Catherine E. Towers, David Towers, Philip J. McCall
Format: Article
Language:English
Published: Nature Portfolio 2023-12-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-023-48499-2
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author Anthony J. Abbott
Agnes Matope
Jeff Jones
Vitaly Voloshin
Catherine E. Towers
David Towers
Philip J. McCall
author_facet Anthony J. Abbott
Agnes Matope
Jeff Jones
Vitaly Voloshin
Catherine E. Towers
David Towers
Philip J. McCall
author_sort Anthony J. Abbott
collection DOAJ
description Abstract Barrier bednets (BBnets), regular bednets with a vertical insecticidal panel to target mosquitoes above the bednet roof, where they are most active, have the potential to improve existing Insecticidal Treated Bednets (ITNs), by reducing the quantity of insecticide required per net, reducing the toxic risks to those using the net, potentially increasing insecticide choice. We evaluated the performance of PermaNet 3.0 (P3) and untreated (Ut) bed nets with and without pyrethroid and piperonyl butoxide roof barriers in killing pyrethroid-resistant and susceptible Anopheles gambiae, simultaneously video-recording mosquito flight tracks. Bioassay results showed that treated roof barriers, particularly the longitudinal P3 barrier (P3L) could be an effective addition to a bed net: P3 + P3L were consistently significantly more effective than the reference P3 bednet while performance of untreated nets could be raised to equal that of the reference P3 following the addition of a P3 barrier. The BBnet’s potential to augment existing bednets and enhance their performance is considered.
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spelling doaj.art-79e2bbc5449f442bab8b8a10963addaf2023-12-17T12:13:12ZengNature PortfolioScientific Reports2045-23222023-12-0113111010.1038/s41598-023-48499-2Insecticidal roof barriers mounted on untreated bed nets can be as effective against Anopheles gambiae as regular insecticide-treated bed netsAnthony J. Abbott0Agnes Matope1Jeff Jones2Vitaly Voloshin3Catherine E. Towers4David Towers5Philip J. McCall6Vector Biology Department, Liverpool School of Tropical MedicineVector Biology Department, Liverpool School of Tropical MedicineVector Biology Department, Liverpool School of Tropical MedicineOptical Engineering Group, School of Engineering, University of WarwickOptical Engineering Group, School of Engineering, University of WarwickOptical Engineering Group, School of Engineering, University of WarwickVector Biology Department, Liverpool School of Tropical MedicineAbstract Barrier bednets (BBnets), regular bednets with a vertical insecticidal panel to target mosquitoes above the bednet roof, where they are most active, have the potential to improve existing Insecticidal Treated Bednets (ITNs), by reducing the quantity of insecticide required per net, reducing the toxic risks to those using the net, potentially increasing insecticide choice. We evaluated the performance of PermaNet 3.0 (P3) and untreated (Ut) bed nets with and without pyrethroid and piperonyl butoxide roof barriers in killing pyrethroid-resistant and susceptible Anopheles gambiae, simultaneously video-recording mosquito flight tracks. Bioassay results showed that treated roof barriers, particularly the longitudinal P3 barrier (P3L) could be an effective addition to a bed net: P3 + P3L were consistently significantly more effective than the reference P3 bednet while performance of untreated nets could be raised to equal that of the reference P3 following the addition of a P3 barrier. The BBnet’s potential to augment existing bednets and enhance their performance is considered.https://doi.org/10.1038/s41598-023-48499-2
spellingShingle Anthony J. Abbott
Agnes Matope
Jeff Jones
Vitaly Voloshin
Catherine E. Towers
David Towers
Philip J. McCall
Insecticidal roof barriers mounted on untreated bed nets can be as effective against Anopheles gambiae as regular insecticide-treated bed nets
Scientific Reports
title Insecticidal roof barriers mounted on untreated bed nets can be as effective against Anopheles gambiae as regular insecticide-treated bed nets
title_full Insecticidal roof barriers mounted on untreated bed nets can be as effective against Anopheles gambiae as regular insecticide-treated bed nets
title_fullStr Insecticidal roof barriers mounted on untreated bed nets can be as effective against Anopheles gambiae as regular insecticide-treated bed nets
title_full_unstemmed Insecticidal roof barriers mounted on untreated bed nets can be as effective against Anopheles gambiae as regular insecticide-treated bed nets
title_short Insecticidal roof barriers mounted on untreated bed nets can be as effective against Anopheles gambiae as regular insecticide-treated bed nets
title_sort insecticidal roof barriers mounted on untreated bed nets can be as effective against anopheles gambiae as regular insecticide treated bed nets
url https://doi.org/10.1038/s41598-023-48499-2
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