ArticleMalaria journal2018
Wall-type and indoor residual spraying application quality affect the residual efficacy of indoor residual spray against wild malaria vector in southwest Ethiopia.
Article in Malaria journal, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed.
- Determinants of malaria prevalence among children under 5 years of age in 17 sub-Saharan African countries: insights from Malaria Indicator Surveys.Global health action · 2026Article
- The Ifakara Ambient Chamber Test (I-ACT) for Evaluation of Indoor Residual Sprays: A Non-Inferiority Test of SylandoInsects · 2026Article
- Insecticidal efficacy of residual spraying with deltamethrin-clothianidin (FludoraParasites & vectors · 2026Article
- Malaria epidemics and its drivers in Uganda in 2022.Malaria journal · 2025Article
- Evaluation of the effectiveness of Aquatain, Bacillus thuringiensis var. israelensis, and Temephos on Anopheles arabiensis and Anopheles stephensi larvae in the laboratory and field settings.Parasites & vectors · 2025Article
- Perceptions and practices of household heads toward malaria: a community based cross sectional study in Southwest Ethiopia.Malaria journal · 2025Article
- The impact of insecticide decay on the rate of insecticide resistance evolution for monotherapies and mixtures.Malaria journal · 2025Article
- Altering of the sprayed wall after indoor residual spraying and associated factors among households in Boricha district, Sidama regional state, Ethiopia, 2019: community-based cross-sectional study.Malaria journal · 2023Article
- Seasonal dynamics ofProceedings of the National Academy of Sciences of the United States of America · 2023Article
- Livelihood activities, human mobility, and risk of malaria infection in elimination settings: a case-control study.Malaria journal · 2023Article
- Article
- Occurrence of asymptomatic malaria infection and living conditions in the lowlands of Ethiopia: a community-based cross-sectional study.Infectious diseases of poverty · 2022Article
- Article
- Variable residual activity of K-Othrine® PolyZone and Actellic® 300 CS in semi-field and natural conditions in the Democratic Republic of the Congo.Malaria journal · 2021Article
- House Structure Is Associated with Malaria among Febrile Patients in a High-Transmission Region of Zambia.The American journal of tropical medicine and hygiene · 2021Article
- Article
- Modelling malaria reduction in a highly endemic country: Evidence from household survey, climate, and program data in Zambia.Journal of public health in Africa · 2020Article
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3 authors.
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Abstract
backgroundResidual efficacy of indoor residual spray may vary with different spray quality and wall surfaces types. This study evaluated the impact of spray quality and wall surface types on residual efficacy of propoxur against wild Anopheles gambiae sensu lato (s.l.) in southwest Ethiopia.
methodsThirty houses of different mud wall surfaces (10 smooth, 10 rough, 10 painted) were selected and randomly allocated into routine and standard spray. The routine spray was conducted by district health office as usual, while the standard spray was done by strictly following guidelines. Three control houses were selected from unsprayed nearby semi-urban. Wild An. gambiae s.l. were used for wall bioassay tests. Two-way mixed model analysis of variance was used to analyse the data. The mean variation between wall and spray types was compared by post hoc analysis of IBM SPSS version 20.
resultsOn standard spray, knockdown rate was 95.3% on painted, 82% on smooth and 72.5% on rough surface at week 17 of post-spray, whereas on routine spray it was 82.7% on painted, 48.7% on smooth and 60% on rough surface. On standard spray, mortality rate of An. gambiae s.l. was 99.3% on painted surface, 90% on smooth and 80% on rough surface. On routine spray, it was 89.3% on painted, 61.3% on smooth and 65% on rough surface at week 17 of post-spray. The painted wall surface showed the highest knockdown rate (86.4-100%) on standard and (73.8-91.5%) routine spray; mortality rate was more than 80% on both spray types during the 17 weeks of follow-up regardless of spray types. The lower mortality rate and residual effect was observed on routine smooth and rough wall surfaces. The residual efficacy of propoxur was > 80% at week 17 on standard spray regardless of the wall types and it was < 80% on routine spray except painted wall surface.
conclusionThe painted wall surface and standard spray showed better residual efficacy. Therefore, it is recommended to consider the wall surface available in the community to estimate the residual lifespan of the insecticide, and strictly to follow the spray guideline to improve the effectiveness of indoor residual spray.
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