Monitoring the density of Aedes aegypti (Diptera: Culicidae) through ovitrap in the urban area of Manaus – Amazonas, Brazil

Aylane Tamara dos Santos Andrade, André Correa de Oliveira, Hergen Vieira de Souza, Vinicius Braz Ribeiro, Joelma Soares da Silva, V. C. Pinheiro, R. Roque
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Abstract

Objective: To compare two monitoring methods, oviposition traps and Aedes aegypti Infestation Index Rapid Survey (LiRAa), aiming to analyze which method is more effective for estimating A. aegypti population density. Methods: Comparative study between LiRAa and population density obtained through 600 oviposition traps from August to September 2021 in the municipality of Manaus/AM. Results: 12.211 Aedes eggs were collected. Of these, (12.96%) in the North health district, followed by the East (23.16%), South (28.44%) and West (35.44%) districts. A difference was identified only between the North and West districts (p < 0.05). When analyzing LiRAa in the four health districts, 3.401 homes were inspected. Of these, (42.99%) in the West Zone, followed by the East Zone (38.25%), North (12.73%) and South (6.03%). When checking the Breteau Index, the unpaired t test did not identify a statistical difference in the level of infestation of immature Aedes. Conclusion: Oviposition traps and LiRAa are important tools for monitoring the infestation of mosquitoes of the genus Aedes. However, ovitraps can provide more accurate data on vector dispersal, which allows greater agility in controlling A. aegypti, the main transmitter of arboviruses in the country.
通过誘蚊產卵器監測巴西亞馬遜馬瑙斯市區埃及伊蚊(雙蟲科:Culicidae)的密度
目的:比较两种监测方法--产卵诱捕器和埃及伊蚊侵扰指数快速调查(LiRAa),旨在分析哪种方法对估计埃及伊蚊种群密度更有效。方法:2021 年 8 月至 9 月在马瑙斯/阿姆斯特丹市对 LiRAa 和通过 600 个产卵诱捕器获得的种群密度进行比较研究。结果共收集到 12 211 枚伊蚊卵。其中,(12.96%)在北卫生区,其次是东区(23.16%)、南区(28.44%)和西区(35.44%)。只有北区和西区之间存在差异(P < 0.05)。在对四个卫生区的 LiRAa 进行分析时,共检查了 3 401 个家庭。其中,西区(42.99%),其次是东区(38.25%)、北区(12.73%)和南区(6.03%)。在检查布雷图指数时,非配对 t 检验并未发现未成年伊蚊侵扰程度的统计差异。结论卵巢诱捕器和 LiRAa 是监测伊蚊属蚊虫侵扰的重要工具。然而,卵盘诱捕器可以提供更准确的病媒传播数据,从而更灵活地控制埃及伊蚊,埃及伊蚊是该国虫媒病毒的主要传播者。
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