Small-scale field evaluation of transfluthrin-treated eave ribbons and sandals for the control of malaria vectors in rural Tanzania
Abstract Background Early-evening and outdoor-biting mosquitoes may compromise the effectiveness of frontline malaria interventions, notably insecticide-treated nets (ITNs). This study aimed to evaluate the efficacy of low-cost insecticide-treated eave ribbons and sandals as supplementary interventi...
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ftdoajarticles:oai:doaj.org/article:a78f0225b8f74de58abd65ae074f1049 2023-05-15T15:15:44+02:00 Small-scale field evaluation of transfluthrin-treated eave ribbons and sandals for the control of malaria vectors in rural Tanzania Arnold S. Mmbando Winifrida P. Mponzi Halfan S. Ngowo Khamis Kifungo Robert Kasubiri Rukiyah M. Njalambaha Tegemeo Gavana Alvaro E. Eiras Elis P. A. Batista Marceline F. Finda Onyango P. Sangoro Fredros O. Okumu 2023-02-01T00:00:00Z https://doi.org/10.1186/s12936-023-04476-8 https://doaj.org/article/a78f0225b8f74de58abd65ae074f1049 EN eng BMC https://doi.org/10.1186/s12936-023-04476-8 https://doaj.org/toc/1475-2875 doi:10.1186/s12936-023-04476-8 1475-2875 https://doaj.org/article/a78f0225b8f74de58abd65ae074f1049 Malaria Journal, Vol 22, Iss 1, Pp 1-13 (2023) Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 article 2023 ftdoajarticles https://doi.org/10.1186/s12936-023-04476-8 2023-02-12T01:32:43Z Abstract Background Early-evening and outdoor-biting mosquitoes may compromise the effectiveness of frontline malaria interventions, notably insecticide-treated nets (ITNs). This study aimed to evaluate the efficacy of low-cost insecticide-treated eave ribbons and sandals as supplementary interventions against indoor-biting and outdoor-biting mosquitoes in south-eastern Tanzania, where ITNs are already widely used. Methods This study was conducted in three villages, with 72 households participating (24 households per village). The households were divided into four study arms and assigned: transfluthrin-treated sandals (TS), transfluthrin-treated eave ribbons (TER), a combination of TER and TS, or experimental controls. Each arm had 18 households, and all households received new ITNs. Mosquitoes were collected using double net traps (to assess outdoor biting), CDC light traps (to assess indoor biting), and Prokopack aspirators (to assess indoor resting). Protection provided by the interventions was evaluated by comparing mosquito densities between the treatment and control arms. Additional tests were done in experimental huts to assess the mortality of wild mosquitoes exposed to the treatments or controls. Results TERs reduced indoor-biting, indoor-resting and outdoor-biting Anopheles arabiensis by 60%, 73% and 41%, respectively, while TS reduced the densities by 18%, 40% and 42%, respectively. When used together, TER & TS reduced indoor-biting, indoor-resting and outdoor-biting An. arabiensis by 53%, 67% and 57%, respectively. Protection against Anopheles funestus ranged from 42 to 69% with TER and from 57 to 74% with TER & TS combined. Mortality of field-collected mosquitoes exposed to TER, TS or both interventions was 56–78% for An. arabiensis and 47–74% for An. funestus. Conclusion Transfluthrin-treated eave ribbons and sandals or their combination can offer significant household-level protection against malaria vectors. Their efficacy is magnified by the transfluthrin-induced mortality, which was ... Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Malaria Journal 22 1 |
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Directory of Open Access Journals: DOAJ Articles |
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English |
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Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 |
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Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 Arnold S. Mmbando Winifrida P. Mponzi Halfan S. Ngowo Khamis Kifungo Robert Kasubiri Rukiyah M. Njalambaha Tegemeo Gavana Alvaro E. Eiras Elis P. A. Batista Marceline F. Finda Onyango P. Sangoro Fredros O. Okumu Small-scale field evaluation of transfluthrin-treated eave ribbons and sandals for the control of malaria vectors in rural Tanzania |
topic_facet |
Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 |
description |
Abstract Background Early-evening and outdoor-biting mosquitoes may compromise the effectiveness of frontline malaria interventions, notably insecticide-treated nets (ITNs). This study aimed to evaluate the efficacy of low-cost insecticide-treated eave ribbons and sandals as supplementary interventions against indoor-biting and outdoor-biting mosquitoes in south-eastern Tanzania, where ITNs are already widely used. Methods This study was conducted in three villages, with 72 households participating (24 households per village). The households were divided into four study arms and assigned: transfluthrin-treated sandals (TS), transfluthrin-treated eave ribbons (TER), a combination of TER and TS, or experimental controls. Each arm had 18 households, and all households received new ITNs. Mosquitoes were collected using double net traps (to assess outdoor biting), CDC light traps (to assess indoor biting), and Prokopack aspirators (to assess indoor resting). Protection provided by the interventions was evaluated by comparing mosquito densities between the treatment and control arms. Additional tests were done in experimental huts to assess the mortality of wild mosquitoes exposed to the treatments or controls. Results TERs reduced indoor-biting, indoor-resting and outdoor-biting Anopheles arabiensis by 60%, 73% and 41%, respectively, while TS reduced the densities by 18%, 40% and 42%, respectively. When used together, TER & TS reduced indoor-biting, indoor-resting and outdoor-biting An. arabiensis by 53%, 67% and 57%, respectively. Protection against Anopheles funestus ranged from 42 to 69% with TER and from 57 to 74% with TER & TS combined. Mortality of field-collected mosquitoes exposed to TER, TS or both interventions was 56–78% for An. arabiensis and 47–74% for An. funestus. Conclusion Transfluthrin-treated eave ribbons and sandals or their combination can offer significant household-level protection against malaria vectors. Their efficacy is magnified by the transfluthrin-induced mortality, which was ... |
format |
Article in Journal/Newspaper |
author |
Arnold S. Mmbando Winifrida P. Mponzi Halfan S. Ngowo Khamis Kifungo Robert Kasubiri Rukiyah M. Njalambaha Tegemeo Gavana Alvaro E. Eiras Elis P. A. Batista Marceline F. Finda Onyango P. Sangoro Fredros O. Okumu |
author_facet |
Arnold S. Mmbando Winifrida P. Mponzi Halfan S. Ngowo Khamis Kifungo Robert Kasubiri Rukiyah M. Njalambaha Tegemeo Gavana Alvaro E. Eiras Elis P. A. Batista Marceline F. Finda Onyango P. Sangoro Fredros O. Okumu |
author_sort |
Arnold S. Mmbando |
title |
Small-scale field evaluation of transfluthrin-treated eave ribbons and sandals for the control of malaria vectors in rural Tanzania |
title_short |
Small-scale field evaluation of transfluthrin-treated eave ribbons and sandals for the control of malaria vectors in rural Tanzania |
title_full |
Small-scale field evaluation of transfluthrin-treated eave ribbons and sandals for the control of malaria vectors in rural Tanzania |
title_fullStr |
Small-scale field evaluation of transfluthrin-treated eave ribbons and sandals for the control of malaria vectors in rural Tanzania |
title_full_unstemmed |
Small-scale field evaluation of transfluthrin-treated eave ribbons and sandals for the control of malaria vectors in rural Tanzania |
title_sort |
small-scale field evaluation of transfluthrin-treated eave ribbons and sandals for the control of malaria vectors in rural tanzania |
publisher |
BMC |
publishDate |
2023 |
url |
https://doi.org/10.1186/s12936-023-04476-8 https://doaj.org/article/a78f0225b8f74de58abd65ae074f1049 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Malaria Journal, Vol 22, Iss 1, Pp 1-13 (2023) |
op_relation |
https://doi.org/10.1186/s12936-023-04476-8 https://doaj.org/toc/1475-2875 doi:10.1186/s12936-023-04476-8 1475-2875 https://doaj.org/article/a78f0225b8f74de58abd65ae074f1049 |
op_doi |
https://doi.org/10.1186/s12936-023-04476-8 |
container_title |
Malaria Journal |
container_volume |
22 |
container_issue |
1 |
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1766346075064500224 |