BACKGROUND Aedes aegypti and Aedes albopictus are the most important arbovirus vectors in the world. OBJECTIVES This study aimed to investigate and compare the infestation pattern of these species in a neighbourhood of Recife, Brazil, endemic for arboviruses in 2005 (T1) and 2013 (T2). METHODS Infestation, distribution and relative abundance of these sympatric species were recorded by egg collection using a network of 59 sentinel ovitraps (s-ovt) at fixed sampling stations for 12 months in T1 and T2. FINDINGS A permanent occupation pattern was detected which was characterised by the presence of egg-laying females of one or both species with a high ovitrap positivity index (94.3 to 100%) throughout both years analysed. In terms of abundance, the total of eggs collected was lower (p < 0.005) in T2 (146,153) than in T1 (281,103), although ovitraps still displayed a high index of positivity. The spatial distribution showed the presence of both species in 65.1% of the 148 s-ovt assessed, while a smaller number of traps exclusively contained Ae. aegypti (22%) or Ae. albopictus (13.2%) eggs. MAIN CONCLUSIONS Our comparative analysis demonstrated the robustness of the spatial occupation and permanence of Ae. aegypti and Ae. albopictus populations in this endemic urban area.

中文翻译：

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巴西地方性虫媒病毒地区埃及伊蚊和白纹伊蚊同域种群的侵染。


背景技术埃及伊蚊和白纹伊蚊是世界上最重要的虫媒病毒载体。目的 本研究旨在调查和比较 2005 年（T1）和 2013 年（T2）虫媒病毒流行的巴西累西腓附近地区这些物种的侵染模式。方法 在 T1 和 T2 的 12 个月内，使用由 59 个前哨产卵器 (s-ovt) 组成的网络在固定采样站收集卵，记录这些同域物种的侵染、分布和相对丰度。结果 检测到一种永久性的占据模式，其特征是在分析的两年中存在一个或两个物种的产卵雌性，其诱蛋器阳性指数较高（94.3%至100%）。就丰度而言，T2 中收集的卵总数（146,153）低于 T1（281,103）（p < 0.005），尽管诱蛋器仍然表现出较高的阳性指数。空间分布显示，在所评估的 148 个 s-ovt 中，65.1% 的诱捕器中都存在这两种物种，而少数诱捕器仅包含白伊蚊。埃及伊蚊 (22%) 或伊蚊。白纹伊蚊（13.2%）卵。主要结论 我们的比较分析证明了 Ae 的空间占据和持久性的稳健性。埃及伊蚊和伊蚊。这个流行城市地区的白纹伊蚊种群。