Unité d'Entomologie Médicale, Institut Pasteur de Dakar, BP, Dakar, Senegal.
Unité des Arbovirus et Virus de Fièvres Hémorragiques, Institut Pasteur de Dakar, BP, Dakar, Senegal.
J Med Entomol. 2019 Jan 8;56(1):149-155. doi: 10.1093/jme/tjy145.
An efficient trapping tool is one of the most important factors in surveillance and research on arboviruses and their vectors. In the current study, we tested the efficiency of several traps for sampling West Nile (WNV) and Usutu (USUV) viruses and their vectors in Senegal during 2013. A total of 15,527 mosquitoes (Diptera: Culicidae), 94.3% females, were collected. Among the known arbovirus vectors, Mansonia uniformis (Theobald) (Diptera: Culicidae) was the most abundant (46.5%), followed by Culex poicilipes Theobald (Diptera: Culicidae) (19.5%), Culex tritaeniorhynchus Giles (Diptera: Culicidae) (8.0%), and Culex neavei Theobald (Diptera: Culicidae) (6.1%). The geometric means of these vectors varied by trap, location, and height. WNV was isolated from Cx. neavei and Cx. tritaeniorhynchus collected by pigeon-baited traps within the canopy, CO2-CDC traps within the canopy and at the ground. USUV was isolated only from Cx. neavei collected by pigeon-baited traps and CO2-CDC traps within the canopy. Therefore, for each study, the trap to be chosen will depend on the mosquito species and virus targeted.
一种高效的诱捕工具是监测和研究虫媒病毒及其媒介的最重要因素之一。在本研究中，我们测试了几种诱捕器在 2013 年塞内加尔采样西尼罗河病毒（WNV）和乌苏图病毒（USUV）及其媒介的效率。共收集了 15527 只蚊子（双翅目：蚊科），94.3%为雌性。在已知的虫媒病毒媒介中，曼蚊（Theobald）（双翅目：蚊科）最为丰富（46.5%），其次是致倦库蚊（Theobald）（双翅目：蚊科）（19.5%）、三带喙库蚊（Giles）（双翅目：蚊科）（8.0%）和苍白库蚊（Theobald）（双翅目：蚊科）（6.1%）。这些媒介的几何平均值因诱捕器、位置和高度而异。WNV 从鸽诱捕器和树冠内 CO2-CDC 诱捕器收集的致倦库蚊和三带喙库蚊中分离出来。USUV 仅从鸽诱捕器和树冠内 CO2-CDC 诱捕器收集的苍白库蚊中分离出来。因此，对于每项研究，选择的诱捕器将取决于目标蚊子种类和病毒。
