当前位置: X-MOL 学术Mem. Inst. Oswaldo Cruz › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Infestation of an endemic arbovirus area by sympatric populations of Aedes aegypti and Aedes albopictus in Brazil.
Memórias do Instituto Oswaldo Cruz ( IF 2.5 ) Pub Date : 2020-05-18 , DOI: 10.1590/0074-02760190437
Rosângela Maria Rodrigues Barbosa 1 , Maria Alice Varjal de Melo-Santos 1 , José Constantino Silveira 2 , Maria Helena Neves Lobo Silva-Filha 1 , Wayner Vieira Souza 2 , Cláudia Maria Fontes de Oliveira 1 , Constância Flávia Junqueira Ayres 1 , Morgana do Nascimento Xavier 1 , Marina Praxedes Rodrigues 1 , Suzane Alves Dos Santos 1 , Mitsue Maia Nakazawa 1 , Lêda Narcisa Regis 1
Affiliation  

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:


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。
更新日期:2020-05-18
down
wechat
bug