دورية
Insecticide resistance status of Aedes aegyptiand Aedes albopictusmosquitoes in southern Benin, West Africa
| العنوان: | Insecticide resistance status of Aedes aegyptiand Aedes albopictusmosquitoes in southern Benin, West Africa |
|---|---|
| المؤلفون: | Konkon, Alphonse Keller, Padonou, Germain Gil, Osse, Razaki, Salako, Albert Sourou, Zoungbédji, David Mahouton, Sina, Haziz, Sovi, Arthur, Tokponnon, Filemon, Aïkpon, Rock, Noukpo, Herbert, Baba-Moussa, Lamine, Akogbéto, Martin Codjo |
| المصدر: | Tropical Medicine and Health; December 2023, Vol. 51 Issue: 1 |
| مستخلص: | Background: The emergence of insecticide resistance in Aedesmosquitoes 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. Methods: Females Ae. albopictusand Ae. aegypticollected 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 Aedeswas mediated by oxidases. Results: Full 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. albopictusto alphacypermethrin. At the opposite, Aedes aegyptiwas 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. aegyptito bendiocarb and pirimiphos-methyl in all communes suggests that these two insecticides can be good candidates for an effective control of pyrethroid-resistant Aedesvector populations. Use of permethrin and deltamethrin could also be considered for controlling populations of Ae. albopictus. Conclusion: Results of the present study will help guide strategy to implement for an effective control of Aedesvector populations in Benin. |
| قاعدة البيانات: | Supplemental Index |
Find this article in full text from Springer Verlag. 
Full Text Finder كن أول من يترك تعليقا!