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Long-Term Efficacy of Insecticidal Wall Painting for Controlling Visceral Leishmaniasis Vectors in Bangladesh

The success of the visceral leishmaniasis (VL) elimination program largely depends on cost-effective vector control measures. Our goal was to investigate the longevity of the efficacy of insecticidal wall painting (IWP), a new vector control tool, compared with a routine indoor residual spraying (IR...

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Autores principales: Alim, Abdul, Huda, M Mamun, Ghosh, Debashis, Halleux, Christine M., Almahmud, Md., Olliaro, Piero L., Matlashewski, Greg, Kroeger, Axel, Aseffa, Abraham, Mondal, Dinesh
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The American Society of Tropical Medicine and Hygiene 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10622479/
https://www.ncbi.nlm.nih.gov/pubmed/37722667
http://dx.doi.org/10.4269/ajtmh.22-0809
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author Alim, Abdul
Huda, M Mamun
Ghosh, Debashis
Halleux, Christine M.
Almahmud, Md.
Olliaro, Piero L.
Matlashewski, Greg
Kroeger, Axel
Aseffa, Abraham
Mondal, Dinesh
author_facet Alim, Abdul
Huda, M Mamun
Ghosh, Debashis
Halleux, Christine M.
Almahmud, Md.
Olliaro, Piero L.
Matlashewski, Greg
Kroeger, Axel
Aseffa, Abraham
Mondal, Dinesh
author_sort Alim, Abdul
collection PubMed
description The success of the visceral leishmaniasis (VL) elimination program largely depends on cost-effective vector control measures. Our goal was to investigate the longevity of the efficacy of insecticidal wall painting (IWP), a new vector control tool, compared with a routine indoor residual spraying (IRS) program for reducing the VL vector density in Bangladesh. This study is the extension of our recent IWP study for VL vector management in Bangladesh, which was undertaken in seven highly VL endemic villages of the Mymensingh district with a 12-month follow-up. In this 24-months follow-up study, we collected sand flies additionally at 15, 18, 21, and 24 months since the interventions from the IWP and control (where the program did routine IRS) clusters to examine the longevity of the efficacy of IWP on sand fly density reduction and mortality. The difference-in-differences regression models were used to estimate the effect of IWP on sand fly reduction against Program IRS. The IWP showed excellent performance in reducing sand fly density and increasing sand fly mortality compared with Program IRS. The effect of IWP for controlling sand flies was statistically significant for up to at least 24 months. The mean female Phlebotomus argentipes density reduction ranged from −56% to −83%, and the P. argentipes sand fly mortality ranged from 81% to 99.5% during the 24-month follow-up period. Considering the duration of the efficacy of IWP for controlling VL vectors, Bangladesh National Kala-azar Elimination Program may consider IWP as the best alternative to IRS for the subsequent phases of the program.
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spelling pubmed-106224792023-11-04 Long-Term Efficacy of Insecticidal Wall Painting for Controlling Visceral Leishmaniasis Vectors in Bangladesh Alim, Abdul Huda, M Mamun Ghosh, Debashis Halleux, Christine M. Almahmud, Md. Olliaro, Piero L. Matlashewski, Greg Kroeger, Axel Aseffa, Abraham Mondal, Dinesh Am J Trop Med Hyg Research Article The success of the visceral leishmaniasis (VL) elimination program largely depends on cost-effective vector control measures. Our goal was to investigate the longevity of the efficacy of insecticidal wall painting (IWP), a new vector control tool, compared with a routine indoor residual spraying (IRS) program for reducing the VL vector density in Bangladesh. This study is the extension of our recent IWP study for VL vector management in Bangladesh, which was undertaken in seven highly VL endemic villages of the Mymensingh district with a 12-month follow-up. In this 24-months follow-up study, we collected sand flies additionally at 15, 18, 21, and 24 months since the interventions from the IWP and control (where the program did routine IRS) clusters to examine the longevity of the efficacy of IWP on sand fly density reduction and mortality. The difference-in-differences regression models were used to estimate the effect of IWP on sand fly reduction against Program IRS. The IWP showed excellent performance in reducing sand fly density and increasing sand fly mortality compared with Program IRS. The effect of IWP for controlling sand flies was statistically significant for up to at least 24 months. The mean female Phlebotomus argentipes density reduction ranged from −56% to −83%, and the P. argentipes sand fly mortality ranged from 81% to 99.5% during the 24-month follow-up period. Considering the duration of the efficacy of IWP for controlling VL vectors, Bangladesh National Kala-azar Elimination Program may consider IWP as the best alternative to IRS for the subsequent phases of the program. The American Society of Tropical Medicine and Hygiene 2023-09-18 2023-11 /pmc/articles/PMC10622479/ /pubmed/37722667 http://dx.doi.org/10.4269/ajtmh.22-0809 Text en © The author(s) https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Alim, Abdul
Huda, M Mamun
Ghosh, Debashis
Halleux, Christine M.
Almahmud, Md.
Olliaro, Piero L.
Matlashewski, Greg
Kroeger, Axel
Aseffa, Abraham
Mondal, Dinesh
Long-Term Efficacy of Insecticidal Wall Painting for Controlling Visceral Leishmaniasis Vectors in Bangladesh
title Long-Term Efficacy of Insecticidal Wall Painting for Controlling Visceral Leishmaniasis Vectors in Bangladesh
title_full Long-Term Efficacy of Insecticidal Wall Painting for Controlling Visceral Leishmaniasis Vectors in Bangladesh
title_fullStr Long-Term Efficacy of Insecticidal Wall Painting for Controlling Visceral Leishmaniasis Vectors in Bangladesh
title_full_unstemmed Long-Term Efficacy of Insecticidal Wall Painting for Controlling Visceral Leishmaniasis Vectors in Bangladesh
title_short Long-Term Efficacy of Insecticidal Wall Painting for Controlling Visceral Leishmaniasis Vectors in Bangladesh
title_sort long-term efficacy of insecticidal wall painting for controlling visceral leishmaniasis vectors in bangladesh
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10622479/
https://www.ncbi.nlm.nih.gov/pubmed/37722667
http://dx.doi.org/10.4269/ajtmh.22-0809
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