ArticleParasites & vectors2025
Insecticide resistance status and high frequency of kdr mutations in Aedes aegypti in Tegucigalpa, Honduras.
Article in Parasites & vectors, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Resurgence of Chikungunya virus: rising global threat and challenges in its mitigation.Frontiers in pharmacology · 2026Review
- Rising of pyrethroid resistance mutations (kdr) in the dengue vectorFrontiers in public health · 2026Article
- A decade of health research capacity building in Honduras: institutional transformation, challenges, and lessons learned.Global health action · 2025Article
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Authors and funding
7 authors.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundAedes aegypti is the main vector of arboviruses in the Americas. Insecticide use remains the primary method for outbreak control, but prolonged application exerts selective pressure that promotes resistance. This study aimed to assess insecticide resistance and characterize key knockdown resistance (kdr) mutations in Ae. aegypti populations from the Central District of Honduras.
methodsLarvae were collected from four localities between May and June 2023. Susceptibility to four insecticides was evaluated via bioassays. Frequencies of the F1534C and V1016I kdr alleles and their haplotypes were determined, and sequencing of the vgsc gene was performed for further genotyping.
resultsA total of 1592 Ae. aegypti females were phenotyped. All populations were resistant to permethrin and malathion, and two were resistant to deltamethrin; all were susceptible to bendiocarb. The 1534C mutant allele was fixed (1.0), and 1016I had an overall frequency of 0.89, with local variation from 0.48 to 1.0.
conclusionsWidespread resistance to commonly used insecticides was detected in Ae. aegypti from the Central District. High frequencies of kdr mutations underscore the need for continuous resistance monitoring to guide effective vector control strategies in Honduras.
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