Githeko A K, Adungo N I, Karanja D M, Hawley W A, Vulule J M, Seroney I K, Ofulla A V, Atieli F K, Ondijo S O, Genga I O, Odada P K, Situbi P A, Oloo J A
Vector Biology and Control Research Center, Kenya Medical Research Institute, Kisumu.
Exp Parasitol. 1996 Apr;82(3):306-15. doi: 10.1006/expr.1996.0038.
Studies were carried out in three villages in western Kenya on the biting behavior of Anopheles gambiae s.s., Anopheles arabiensis, and Anopheles funestus. Blood feeding behavior and departure from houses were studied under the impact of permethrin-impregnated eaves-sisal curtains. Only 2-13% of the female vector population was collected biting before 2200 hr. Over 90% of the villagers went to bed by 2100 hr. An. funestus was 6.6-8.2 times more likely to bite people indoors than outdoors, while An. gambiae s.l. females were only 2 times as likely. Under the influence of permethrin-impregnated sisal curtains placed under the eaves of village houses, there was a marked egress of blood-fed An. funestus and An. gambiae s.s. Permethrin seems to have induced exophily of half-gravid female An. gambiae s.s. While An. gambiae s.s. remained highly anthropophagic under the impact of permethrin, An. funestus shifted to feeding more on cattle. An arabiensis were largely zoophilic. Our results underline the difficulties of controlling An. gambiae s.s., the principal African malaria vector. New strategies must be found to control this vector.
在肯尼亚西部的三个村庄开展了关于冈比亚按蚊指名亚种、阿拉伯按蚊和嗜人按蚊叮咬行为的研究。在使用氯菊酯浸渍的屋檐剑麻窗帘的影响下，研究了吸血行为和离开房屋的情况。仅2%-13%的雌性病媒种群在22:00之前被采集到正在叮咬。超过90%的村民在21:00之前上床睡觉。嗜人按蚊在室内叮咬人的可能性是室外的6.6-8.2倍，而冈比亚按蚊复合种群的雌性在室内叮咬人的可能性仅为室外的2倍。在村庄房屋屋檐下放置氯菊酯浸渍的剑麻窗帘的影响下，吸食过血液的嗜人按蚊和冈比亚按蚊指名亚种出现了明显的外出。氯菊酯似乎诱导了半孕雌性冈比亚按蚊指名亚种的外栖习性。虽然在氯菊酯的影响下冈比亚按蚊指名亚种仍然高度嗜人，但嗜人按蚊转而更多地吸食牛血。阿拉伯按蚊主要嗜兽血。我们的结果突显了控制非洲主要疟疾传播媒介冈比亚按蚊指名亚种的困难。必须找到控制这一病媒的新策略。
