ArticleTropical medicine and health2023
Insecticide resistance status of Aedes aegypti and Aedes albopictus mosquitoes in southern Benin, West Africa.
Article in Tropical medicine and health, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed, 27 citations in OpenAlex.
- Multiple resistance and influence of breeding sites on pyrethroid resistance in Aedes aegypti from Ouagadougou, Burkina Faso.Tropical medicine and health · 2025Article
- Insecticide resistance in Aedes aegypti and Aedes albopictus in southern Benin: quantification, investigation of kdr mutations, and detection of detoxification enzyme activity.Tropical medicine and health · 2025Article
- Expression of cytochrome P450 monooxygenase genes in pyrethroid-resistant Aedes albopictus.Scientific reports · 2025Article
- Invasion of the Dengue Vector Aedes albopictus in the Port City of Takoradi, Southwestern Ghana.Research square · 2025Article
- Harnessing the highly adaptable barnase-barstar system for genetic biocontrol of Aedes aegypti.Communications biology · 2025Article
- Vector control for Aedes aegypti and Aedes albopictus mosquitoes implemented in the field in sub-Saharan Africa: A scoping review.PLoS neglected tropical diseases · 2025Article
- Bioassay tests reveal for the first time pyrethroid resistance in Aedes mosquitoes from Franceville, southeast Gabon, Central Africa.Parasite (Paris, France) · 2025Article
- The major and minorGigaByte (Hong Kong, China) · 2025Article
- The Effectiveness of Educational Intervention in Promoting Preventive Behaviors of Dengue Fever in Southern Iran: Applying Health Belief Model (HBM).Health science reports · 2024Article
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12 authors at 5 institutions in 2 countries.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundThe emergence of insecticide resistance in Aedes mosquitoes could undermine efforts to control arboviruses. The present study aims to assess in some communes of Southern Benin, the susceptibility level of Aedes aegypti (Linnaeus, 1762) and Aedes albopictus (Skuse, 1894) to insecticides commonly used in public health, as well as mechanisms involved.
methodsFemales Ae. albopictus and Ae. aegypti collected in Ifangni, Porto-Novo, Avrankou, Adjarra and Kétou from June 2021 to October 2022, were exposed to: deltamethrin 0.05%, permethrin 0.75%, alpha-cypermethrin 0.05%, pirimiphos methyl 0.25% and bendiocarb 0.1%, following the standard WHO susceptibility tube test protocol. In some sites, pre-exposure to the synergist PBO was used to verify if pyrethroid resistance of populations of Aedes was mediated by oxidases.
resultsFull susceptibility to deltamethrin and permethrin was observed in all tested populations of Ae. albopictus. However, with alphacypermethrin, a suspected resistance was observed in Adjarra (94.67%), Ifangni (93%) and Porto-Novo (94%), and a resistance in Avrankou (83%). The PBO-alphacypermethrin tests performed, led to a full susceptibility (100%) in all four sites, which confirms the full involvement of oxidases in resistance of all tested populations of Ae. albopictus to alphacypermethrin. At the opposite, Aedes aegypti was either resistant or suspected of being resistant to all tested pyrethroids in all four sites, except in Ifangni where a full susceptibility to alphacypermethrin was observed. The full susceptibility of Ae. aegypti to bendiocarb and pirimiphos-methyl in all communes suggests that these two insecticides can be good candidates for an effective control of pyrethroid-resistant Aedes vector populations. Use of permethrin and deltamethrin could also be considered for controlling populations of Ae. albopictus.
conclusionResults of the present study will help guide strategy to implement for an effective control of Aedes vector populations in Benin.
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