Sene Ndeye Marie, Diouf Babacar, Gaye Alioune, Ndiaye El Hadji, Ngom Elhadj Malick, Gueye Assiyatou, Seck Fatoumata, Diagne Cheikh Tidiane, Dia Ibrahima, Diallo Diawo, Diallo Mawlouth
Pôle de Zoologie Médicale, Institut Pasteur de Dakar, Dakar, Senegal.
MIVEGEC, IRD, University of Montpellier, CNRS, Montpellier, France.
Am J Trop Med Hyg. 2022 Mar 28;106(5):1402-5. doi: 10.4269/ajtmh.21-0508.
Aedes aegypti plays an important role in the transmission of several arboviruses of medical importance. The availability of information on the blood-feeding preferences of mosquito vectors is a critical step in the understanding of the transmission of human pathogens and implementation of control strategies. In Senegal, no data currently exist on the feeding pattern of Ae. aegypti in urban areas. To fill this gap, Ae. aegypti blood-fed females were collected in five localities by aspiration and using BG Sentinel 2 traps. Collections were carried out monthly between July and November 2019 inside and outside human dwellings. The origin of the blood meal of Ae. aegypti females were identified by an ELISA technique. A total of 1,710 blood-engorged females were examined and showed that Ae. aegypti preferentially fed on human with 78.6% of the identified blood meals. The other blood meals were from animals including dog, cat, horse, cattle, sheep, and rat. This is the first report on the feeding behavior of Ae. aegypti in urban settings in West Africa. It demonstrated that this species is highly anthropophilic.
埃及伊蚊在传播几种具有医学重要性的虫媒病毒方面发挥着重要作用。了解蚊媒的血液摄食偏好是理解人类病原体传播和实施控制策略的关键一步。在塞内加尔,目前尚无关于城市地区埃及伊蚊摄食模式的数据。为填补这一空白,通过抽吸和使用BG Sentinel 2诱捕器在五个地点收集了已吸食血液的埃及伊蚊雌蚊。2019年7月至11月期间,每月在人类住所内外进行采集。通过酶联免疫吸附测定(ELISA)技术确定埃及伊蚊雌蚊血餐的来源。共检查了1710只饱血雌蚊,结果显示埃及伊蚊优先吸食人类血液,已确定的血餐中有78.6%来自人类。其他血餐来自动物,包括狗、猫、马、牛、羊和大鼠。这是关于西非城市地区埃及伊蚊摄食行为的首份报告。它表明该物种具有高度嗜人性。