尼日利亚拉各斯泻湖Badagry轴线疟疾传播中按蚊种类组成及作用

I. Oyewole, C. A. Ibidapo, O. Okwa, A. Oduola, A. Oduola, G. Adeoye, H. Okoh, T. Awolola
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引用次数: 17

摘要

为了确定其种类组成、相对丰度、密度及其在沿海生态系统中对疟疾传播的贡献,对拉各斯泻湖Badagry轴上的3个群落进行室内静息按蚊取样。2005 - 2007年共捕获成年雌按蚊1938只,构成冈比亚按蚊、黑按蚊和黑按蚊3种。nili。基于聚合酶链反应(PCR)的测试表明,超过四分之三的安。gambiae s.l(75.8%)属An族。冈比亚人说,剩下的是安哥拉人。米拉。进一步的分析表明,所有的An。冈比亚病毒是M型。酶联免疫吸附法分析表明,An。冈比亚s.s和An。黑melas是该地区主要的疟疾媒介,总体恶性疟原虫孢子虫感染率分别为4.8%和6.5%。这两个物种也保持了相对较高的EIR,表明它们在研究区域的疟疾传播中发挥了重要作用。所有的安。nili检测均未发现恶性疟原虫孢子虫感染。这项研究为规划与减少尼日利亚沿海地区疟疾传播有关的病媒控制规划提供了基线信息。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Species Composition and Role of Anopheles Mosquitoes in Malaria Transmission Along Badagry Axis of Lagos Lagoon, Lagos, Nigeria
Three communities along Badagry axis of the Lagos lagoon were sampled for indoor resting Anopheles mosquitoes in order to determine their species composition, relative abundance, density and contribution to malaria transmission in the coastal ecosystem. A total of 1938 adult female Anopheles mosquitoes collected from 2005 to 2007 constituted three species viz Anopheles gambiae, An melas and An. nili. The Polymerase Chain Reaction (PCR)–-based tests indicated that more than three-fourth of the An. gambiae s.l (75.8%) population belongs to An. gambiae s.s the remaining were An. melas. Further analysis showed that all the An. gambiae s.s was the M form. ELISA-based analyses indicated that An. gambiae s.s and An. melas were the main vectors of malaria in this area with an overall P. falciparum sporozoite infection rate of 4.8% and 6.5% respectively. Both species also maintained relatively high EIR indicating their prominent roles in malaria transmission in the study area. All the An. nili tested were negative for P. falciparum sporozoite infection. This study provides baseline information for planning vector control programme relevant to reduction of malaria transmission in the coastal areas of Nigeria.
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