ArticleBMC infectious diseases2022
Escalating pyrethroid resistance in two major malaria vectors Anopheles funestus and Anopheles gambiae (s.l.) in Atatam, Southern Ghana.
Article in BMC infectious diseases, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.
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Who cites it
30 citing papers in PubMed.
- Metabolomic Changes Underpinning Permethrin Resistance in theACS measurement science au · 2026Article
- Sublethal effects of insecticides on the reproduction traits of insecticide-resistant Anopheles gambiae sensu lato mosquitoes from Tiassalé, Côte d'Ivoire.Parasites & vectors · 2026Article
- Four-year monitoring of the malaria vector Anopheles funestus in central-west Cameroon reveals an escalation of pyrethroid resistance combined with high malaria transmission.BMC infectious diseases · 2026Article
- Metabolomic changes underpinning permethrin resistance in thebioRxiv : the preprint server for biology · 2026Article
- Comparative analysis reveals concentration-dependent and site-specific detoxification gene expression patterns in pyrethroid-resistant Anopheles gambiae s.l. from Accra, Ghana.Scientific reports · 2026Article
- Article
- Spatial Heterogeneity ofJournal of parasitology research · 2026Review
- PoolSeq Genome-Wide Association Studies and Microbial Signature Analyses Identify Novel Candidates Associated With Pyrethroid Resistance Evolution in Anopheles funestus in Cameroon.Molecular ecology · 2026Article
- A large-scale mosquito larviciding in Tanga Region, Tanzania, reduced mosquito densities to varying degrees across malaria transmission risk strata.Scientific reports · 2025Article
- Genomic Drivers of Pyrethroid Resistance Escalation in the Malaria Vector Anopheles funestus Across Africa.Molecular biology and evolution · 2025Article
- Characterizing the escalation of pyrethroid resistance and its impact on bed nets efficacy alongside molecular basis in Anopheles funestus from Cameroon.Malaria journal · 2025Article
- Malaria prevalence and its determinants across 19 sub-Saharan African countries: a spatial and geographically weighted regression analysis.Malaria journal · 2025Article
- The duplicated cytochrome P450 CYP6P9a/b confers cross-resistance to a mitochondrial complex I inhibitor in the African malaria vector Anopheles funestus.BMC genomics · 2025Article
- Novel insecticide resistance mutations associated with variable PBO synergy in Anopheles gambiae s.l. from the Democratic Republic of Congo.Scientific reports · 2025Article
- Evidence of microbiome contribution to the escalation of pyrethroid resistance in the major malaria vectors Anopheles gambiae s.s. and Anopheles funestus s.s.BMC microbiology · 2025Article
- Distribution of Anopheles gambiae s.l siblings, insecticide resistance and prevalence of markers of resistance (Kdr & Ace-1) in Edea and Buea: forest region of Cameroon.BMC infectious diseases · 2025Article
- Exploring the metabolic and cuticular mechanisms of increased pyrethroid resistance in Anopheles gambiae S.l populations from Ghana.Scientific reports · 2025Article
- Does use of domestic insecticides undermine public health control strategies?Lancet regional health. Americas · 2025Review
- Lysinibacillus sphaericus exposure impedes Anopheles dirus's oviposition via downregulating vitellogenin.Parasites & vectors · 2025Article
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Abstract
backgroundAggravation of insecticide resistance in malaria vectors is threatening the efforts to control malaria by reducing the efficacy of insecticide-based interventions hence needs to be closely monitored. This study investigated the intensity of insecticide resistance of two major malaria vectors An. funestus sensu stricto (s.s.) and An. gambiae sensu lato (s.l.) collected in southern Ghana and assessed the bio-efficacy of several long-lasting insecticidal nets (LLINs) against these mosquito populations.
methodsThe insecticide susceptibility profiles of Anopheles funestus s.s. and Anopheles gambiae s.l. populations from Obuasi region (Atatam), southern Ghana were characterized and the bio-efficacy of some LLINs was assessed to determine the impact of insecticide resistance on the effectiveness of these tools. Furthermore, molecular markers associated with insecticide resistance in both species were characterized in the F
resultsAnopheles funestus s.s. was the predominant species and was resistant to pyrethroids, organochlorine and carbamate insecticides, but fully susceptible to organophosphates. An. gambiae s.l. was resistant to all four insecticide classes. High intensity of resistance to 5 × and 10 × the discriminating concentration (DC) of pyrethroids was observed in both species inducing a considerable loss of efficacy of long-lasting insecticidal nets (LLINs). Temporal expression analysis revealed a massive 12-fold increase in expression of the CYP6P4a cytochrome P450 gene in An. funestus s.s., initially from a fold change of 41 (2014) to 500 (2021). For both species, the expression of candidate genes did not vary according to discriminating doses. An. gambiae s.l. exhibited high frequencies of target-site resistance including Vgsc-1014F (90%) and Ace-1 (50%) while these mutations were absent in An. funestus s.s.
conclusionsThe multiple and high intensity of resistance observed in both malaria vectors highlights the need to implement resistance management strategies and the introduction of new insecticide chemistries.
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