Laboratoire de Biologie et Santé, Unité de Formation et de Recherches Biosciences, Université Félix Houphouët-Boigny, Abidjan, Côte d'Ivoire.
Institut Pierre Richet/Institut National de Santé Publique (IPR/INSP), Bouaké, Côte d'Ivoire.
Med Vet Entomol. 2022 Sep;36(3):329-337. doi: 10.1111/mve.12571. Epub 2022 Mar 30.
Dengue and yellow fever are prevalent in Côte d'Ivoire and Aedes (Stegomyia) aegypti (Linnaeus), (Diptera: Culicidae), is known as the main vector. We aimed to assess seasonal variation and spatial heterogeneity in the transmission of both arbovirus diseases in Abidjan. Entomological surveys targeting larvae of A. aegypti, were carried out between November 2015 and August 2016 covering the four climatic seasons including a cohort of 100 houses randomly selected in three neighbourhoods. A. aegypti was the predominant species (96.6%) of mosquitoes resulting from the rearing of harvested larvae, and the only vector of dengue and yellow fever recorded during the study period. The highest proportion of water storage containers (45.5%) which represented the major breeding sites infested by the larvae of A. aegypti, was observed in Anoumabo. The house indices >5% and/or Breteau indices >20 recorded in each neighbourhood, during the different climatic seasons, indicated that there was, a high and permanent, heterogeneity in the transmission risk of dengue and yellow fever between the three neighbourhoods. In terms of transmission risk, Anoumabo was the neighbourhood with the highest risk compared to the two others, then, particular attention should be paid to this site in terms of surveillance by vector control programme in Abidjan.
登革热和黄热病在科特迪瓦流行，埃及伊蚊（Stegomyia）aegypti（Linnaeus）（双翅目：蚊科）被认为是主要媒介。我们旨在评估阿比让登革热和黄热病两种虫媒病毒病的季节性变化和空间异质性。在 2015 年 11 月至 2016 年 8 月期间，针对埃及伊蚊幼虫进行了昆虫学调查，涵盖了四个气候季节，包括在三个街区随机选择的 100 户家庭作为队列。从收获的幼虫中饲养出来的蚊子中，埃及伊蚊（Aedes aegypti）是最主要的物种（96.6%），也是研究期间记录到的登革热和黄热病的唯一媒介。在 Anoumabo 观察到的储水容器比例最高（45.5%），这些容器是埃及伊蚊幼虫的主要滋生地。在不同的气候季节，每个街区记录的房屋指数>5%和/或布雷托指数>20，表明在三个街区之间，登革热和黄热病的传播风险存在高度和永久性的异质性。就传播风险而言，Anoumabo 是与其他两个街区相比风险最高的街区，因此，在阿比让的病媒控制计划监测方面，应特别关注该地区。
