Lindblade K A, Gimnig J E, Kamau L, Hawley W A, Odhiambo F, Olang G, Ter Kuile F O, Vulule J M, Slutsker L
Division of Parasitic Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, 4770 Buford Hwy MS F-22, Atlanta GA 30333, USA.
J Med Entomol. 2006 Mar;43(2):428-32. doi: 10.1603/0022-2585(2006)043[0428:iosuoi]2.0.co;2.
Insecticide-treated bednets (ITNs) significantly reduce malaria vector populations. Susceptibility to ITNs differs by vector species, and culicine mosquitoes have not been shown to be significantly affected by the use of ITNs. We examined the impact of 2-4 yr of ITN use on malaria vector species distribution and culicine mosquitoes. Routine entomological surveillance was conducted in adjacent areas with and without ITNs from November 1999 to January 2002. Use of ITNs reduced the proportion of Anopheles gambiae Giles relative to Anopheles arabiensis Giles. The number of culicines per house was significantly lower in the ITN area than in the neighboring area. Changes in the An. gambiae sibling species distribution may help to explain apparent mosquito behavioral changes attributed to ITNs. Reductions in culicines by ITNs may have implications for community perceptions of ITN effectiveness and for control of other diseases such as lymphatic filariasis.
经杀虫剂处理的蚊帐（ITNs）可显著减少疟疾病媒种群。不同病媒种类对ITNs的易感性存在差异，而且库蚊尚未显示出受ITNs使用的显著影响。我们研究了使用ITNs 2至4年对疟疾病媒种类分布和库蚊的影响。1999年11月至2002年1月，在使用和未使用ITNs的相邻地区开展了常规昆虫学监测。与阿拉伯按蚊相比，使用ITNs降低了冈比亚按蚊的比例。ITN地区每户的库蚊数量显著低于邻近地区。冈比亚按蚊同胞种类分布的变化可能有助于解释归因于ITNs的明显蚊虫行为变化。ITNs使库蚊数量减少可能会影响社区对ITN有效性的认知以及对其他疾病（如淋巴丝虫病）的控制。
