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Article

Distribution and Abundance of Aedes aegypti and Aedes albopictus (Diptera: Culicidae) in Benin, West Africa

by
Germain Gil Padonou
1,2,*,
Alphonse Keller Konkon
1,2,
Albert Sourou Salako
1,
David Mahouton Zoungbédji
1,2,
Razaki Ossè
1,3,
Arthur Sovi
1,4,5,*,
Roseric Azondekon
1,
Aboubakar Sidick
1,
Juvénal Minassou Ahouandjinou
1,2,
Constantin Jesukèdè Adoha
1,2,
André Aimé Sominahouin
1,
Filémon Tatchémè Tokponnon
1,
Bruno Akinro
1,
Haziz Sina
2,
Lamine Baba-Moussa
2 and
Martin Codjo Akogbéto
1
1
Centre de Recherche Entomologique de Cotonou (CREC), Cotonou 06 BP 2604, Benin
2
Laboratory of Biology and Molecular Typing in Microbiology, Department of Biochemistry and Cellular Biology, Faculty of Sciences and Techniques, University of Abomey-Calavi, Cotonou 05 BP 1604, Benin
3
École de Gestion et d’Exploitation des Systèmes d’Élevage, Université Nationale d’Agriculture de Porto-Novo, Porto-Novo 01 BP 55, Benin
4
Faculty of Agronomy, University of Parakou, Parakou BP 123, Benin
5
Faculty of Infectious and Tropical Diseases, Disease Control Department, The London School of Hygiene & Tropical Medicine, Keppel Street, London WC1E 7HT, UK
*
Authors to whom correspondence should be addressed.
Trop. Med. Infect. Dis. 2023, 8(9), 439; https://doi.org/10.3390/tropicalmed8090439
Submission received: 10 August 2023 / Revised: 30 August 2023 / Accepted: 5 September 2023 / Published: 7 September 2023
(This article belongs to the Special Issue Advances in Prevention, Surveillance, and Control of Diseases Transmitted by Aedes Mosquitoes)
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Abstract

Updated information on the distribution and abundance of Aedes aegypti and Aedes albopictus is crucial to prepare African countries, such as Benin, for possible arboviral disease outbreaks. This study aims to evaluate the geographical distribution, abundance and biting behaviour of these two vectors in Benin. Three sampling techniques were used in this study. The collection of Aedes spp. adults were made through human landing catch (HLC), immatures were captured with the use of ovitraps, and a dipping technique was used for the collection of Aedes spp. in 23 communes located along the North–South and East–West transect of Benin. Adult Aedes mosquitoes were collected indoors and outdoors using HLC. Mosquito eggs, larvae and pupae were collected from containers and ovitraps. The adult mosquitoes were morphologically identified, then confirmed using a polymerase chain reaction (PCR). Overall, 12,424 adult specimens of Aedes spp. were collected, out of which 76.53% (n = 9508) and 19.32% (n = 2400) were morphologically identified as Ae. aegypti and Ae. albopictus, respectively. Geographically, Ae. aegypti was found across the North–South transect unlike Ae. albopictus, which was only encountered in the southern part of the country, with a great preponderance in Avrankou. Furthermore, an exophagic behaviour was observed in both vectors. This updated distribution of Aedes mosquito species in Benin will help to accurately identify areas that are at risk of arboviral diseases and better plan for future vector control interventions.
Keywords: Aedes aegypti; Aedes albopictus; distribution; abundance; biting behaviour; Benin Aedes aegypti; Aedes albopictus; distribution; abundance; biting behaviour; Benin

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MDPI and ACS Style

Padonou, G.G.; Konkon, A.K.; Salako, A.S.; Zoungbédji, D.M.; Ossè, R.; Sovi, A.; Azondekon, R.; Sidick, A.; Ahouandjinou, J.M.; Adoha, C.J.; et al. Distribution and Abundance of Aedes aegypti and Aedes albopictus (Diptera: Culicidae) in Benin, West Africa. Trop. Med. Infect. Dis. 2023, 8, 439. https://doi.org/10.3390/tropicalmed8090439

AMA Style

Padonou GG, Konkon AK, Salako AS, Zoungbédji DM, Ossè R, Sovi A, Azondekon R, Sidick A, Ahouandjinou JM, Adoha CJ, et al. Distribution and Abundance of Aedes aegypti and Aedes albopictus (Diptera: Culicidae) in Benin, West Africa. Tropical Medicine and Infectious Disease. 2023; 8(9):439. https://doi.org/10.3390/tropicalmed8090439

Chicago/Turabian Style

Padonou, Germain Gil, Alphonse Keller Konkon, Albert Sourou Salako, David Mahouton Zoungbédji, Razaki Ossè, Arthur Sovi, Roseric Azondekon, Aboubakar Sidick, Juvénal Minassou Ahouandjinou, Constantin Jesukèdè Adoha, and et al. 2023. "Distribution and Abundance of Aedes aegypti and Aedes albopictus (Diptera: Culicidae) in Benin, West Africa" Tropical Medicine and Infectious Disease 8, no. 9: 439. https://doi.org/10.3390/tropicalmed8090439

APA Style

Padonou, G. G., Konkon, A. K., Salako, A. S., Zoungbédji, D. M., Ossè, R., Sovi, A., Azondekon, R., Sidick, A., Ahouandjinou, J. M., Adoha, C. J., Sominahouin, A. A., Tokponnon, F. T., Akinro, B., Sina, H., Baba-Moussa, L., & Akogbéto, M. C. (2023). Distribution and Abundance of Aedes aegypti and Aedes albopictus (Diptera: Culicidae) in Benin, West Africa. Tropical Medicine and Infectious Disease, 8(9), 439. https://doi.org/10.3390/tropicalmed8090439

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