Reiter P, Amador M A, Anderson R A, Clark G G
Dengue Branch, Centers for Disease Control and Prevention, San Juan, Puerto Rico.
Am J Trop Med Hyg. 1995 Feb;52(2):177-9. doi: 10.4269/ajtmh.1995.52.177.
Strategies for the control of Aedes aegypti during urban outbreaks of dengue or yellow fever assume that this species has a maximum flight range of 50-100 meters. Because Ae. aegypti distributes its eggs among several oviposition sites, we postulated that dispersal is driven by the search for oviposition sites, so an ovipositing female may have to fly much further than 50-100 meters to lay all of her eggs. We developed a method for marking Ae. aegypti eggs with a rare alkali metal (rubidium) and showed that in an urban area, oviposition activity in a single gonotrophic cycle lasts several days and covers an area at least 840 meters in diameter (55.4 hectares). We suggest that current practice for the control of dengue and yellow fever transmission by focal treatments with insecticides 50-100 meters around presumed or confirmed cases is unlikely to be effective. Moreover, source reduction (the elimination of breeding sites) may enhance dissemination of virus-infected mosquitoes by reducing the number of available oviposition sites.
在登革热或黄热病城市疫情期间控制埃及伊蚊的策略假定该物种的最大飞行范围为50 - 100米。由于埃及伊蚊会将卵分散在多个产卵地点，我们推测其扩散是由寻找产卵地点驱动的，因此一只正在产卵的雌蚊可能不得不飞行远超50 - 100米的距离来产下所有的卵。我们开发了一种用稀有碱金属（铷）标记埃及伊蚊卵的方法，并表明在城市地区，单个生殖营养周期内的产卵活动持续数天，覆盖直径至少840米（55.4公顷）的区域。我们认为，目前围绕疑似或确诊病例周围50 - 100米进行杀虫剂局部处理以控制登革热和黄热病传播的做法不太可能有效。此外，减少源头（消除繁殖地点）可能会通过减少可用产卵地点的数量而增强感染病毒的蚊子的传播。
