Surveys of Arboviruses Vectors in Four Cities Stretching Along a Railway Transect of Burkina Faso: Risk Transmission and Insecticide Susceptibility Status of Potential Vectors
| Autor: | Lissy Parfait Eric Ouattara, Ibrahim Sangaré, Moussa Namountougou, Aristide Hien, Ali Ouari, Dieudonné Diloma Soma, Daouda Kassié, Abdoulaye Diabaté, Olivier Gnankiné, Emmanuel Bonnet, Valéry Ridde, Maurice Adja Akré, Florence Fournet, Kounbobr Roch Dabiré |
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| Přispěvatelé: | Université Polytechnique Nazi Boni Bobo-Dioulasso (UNB), Institut de Recherche en Sciences de la Santé (IRSS) / Centre Muraz, Animal, Santé, Territoires, Risques et Ecosystèmes (UMR ASTRE), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA), Institut de Recherche en Sciences de la Santé (IRSS), CNRST, Université de Ouagadougou, Institut de Recherche pour le Développement (IRD), Département de santé environnementale et santé au travail, Faculté de Médecine-CRCHUM (Centre Médical St-Urbain), Maladies infectieuses et vecteurs : écologie, génétique, évolution et contrôle (MIVEGEC), Institut de Recherche pour le Développement (IRD [France-Sud])-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM), Département Systèmes Biologiques (Cirad-BIOS), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Université Joseph Ki-Zerbo [Ouagadougou] (UJZK), Unité mixte internationale Résiliences (UMI RESILIENCES), Institut de Recherche pour le Développement (IRD)-Centre ivoirien de recherches économiques et sociales (CIRES)-Université de Cocody, Centre population et développement (CEPED - UMR_D 196), Institut de Recherche pour le Développement (IRD)-Université Paris Cité (UPCité), Diversity, ecology, evolution & Adaptation of arthropod vectors (MIVEGEC-DEEVA), Evolution des Systèmes Vectoriels (ESV), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Maladies infectieuses et vecteurs : écologie, génétique, évolution et contrôle (MIVEGEC), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud]), Centre ivoirien de recherches économiques et sociales (CIRES)-Université de Cocody, Institut de Recherche pour le Développement (IRD)-Université de Paris (UP) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Veterinary medicine
Culex 030231 tropical medicine Bendiocarb Aedes aegypti Biology 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine parasitic diseases Burkina Faso 030212 general & internal medicine ComputingMilieux_MISCELLANEOUS Original Research railway transect Aedes lcsh:Veterinary medicine General Veterinary fungi Outbreak insecticide resistance biology.organism_classification 3. Good health Deltamethrin Stegomyia indices chemistry Vector (epidemiology) lcsh:SF600-1100 Malathion Veterinary Science [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
| Zdroj: | Frontiers in Veterinary Science Frontiers in Veterinary Science, Frontiers Media, 2019, 6, ⟨10.3389/fvets.2019.00140⟩ Frontiers in Veterinary Science, 2019, 6, ⟨10.3389/fvets.2019.00140⟩ Frontiers in Veterinary Science, Vol 6 (2019) |
| ISSN: | 2297-1769 |
| Popis: | Background: A severe outbreak of dengue occurred in Burkina Faso in 2016, with the most cases reported in Ouagadougou, that highlights the necessity to implement vector surveillance system. This study aims to estimate the risk of arboviruses transmission and the insecticide susceptibility status of potential vectors in four sites in Burkina Faso. Methods: From June to September 2016, house-to-house cross sectional entomological surveys were performed in four cities stretching along a southwest-to-northeast railway transect. The household surveys analyzed the presence of Aedes spp. larvae in containers holding water and the World Health Organization (WHO) larval abundance indices were estimated. WHO tube assays was used to evaluate the insecticide susceptibility within Aedes populations from these localities. Results: A total of 31,378 mosquitoes' larvae were collected from 1,330 containers holding water. Aedes spp. was the most abundant (95.19%) followed by Culex spp. (4.75%). Aedes aegypti a key vector of arboviruses (ARBOV) in West Africa was the major Aedes species found (98.60%). The relative larval indices, house index, container and Breteau indexes were high, up to 70, 35, and 10, respectively. Aedes aegypti tended to breed mainly in discarded tires and terracotta jars. Except in Banfora the western city, Ae. aegypti populations were resistant to deltamethrin 0.05% in the other localities with low mortality rate under 20% in Ouagadougou whereas they were fully susceptible to malathion 5% whatever the site. Intermediate resistance was observed in the four sites with mortality rates varying between 78 and 94% with bendiocarb 0.1%. Conclusions: This study provided basic information on entomological indices that can help to monitor the risks of ARBOV epidemics in the main cities along the railway in Burkina Faso. In these cities, all larval indices exceeded the risk level of ARBOV outbreak. Aedes aegypti the main species collected was resistant to deltamethrin 0.05% and bendiocarb 0.1% whereas they were fully susceptible to malathion 5%. The monitoring of insecticide resistance is also important to be integrated to the vector surveillance system in Burkina Faso. |
| Databáze: | OpenAIRE |
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