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Mapping malaria vectors and insecticide resistance in a high-endemic district of Haryana, India: implications for vector control strategies
Malaria Journal ( IF 3 ) Pub Date : 2024-04-17 , DOI: 10.1186/s12936-023-04797-8
Gaurav Kumar , Sanjeev Gupta , Jaspreet Kaur , Shweta Pasi , Rajendra Baharia , Ajeet Kumar Mohanty , Pawan Goel , Amit Sharma , Manju Rahi

Achieving effective control and elimination of malaria in endemic regions necessitates a comprehensive understanding of local mosquito species responsible for malaria transmission and their susceptibility to insecticides. The study was conducted in the highly malaria prone Ujina Primary Health Center of Nuh (Mewat) district of Haryana state of India. Monthly entomological surveys were carried out for adult mosquito collections via indoor resting collections, light trap collections, and pyrethrum spray collections. Larvae were also collected from different breeding sites prevalent in the region. Insecticide resistance bioassay, vector incrimination, blood meal analysis was done with the collected vector mosquitoes. A total of 34,974 adult Anopheles mosquitoes were caught during the survey period, out of which Anopheles subpictus was predominant (54.7%). Among vectors, Anopheles stephensi was predominant (15.5%) followed by Anopheles culicifacies (10.1%). The Human Blood Index (HBI) in the case of An. culicifacies and An. stephensi was 6.66 and 9.09, respectively. Vector incrimination results revealed Plasmodium vivax positivity rate of 1.6% for An. culicifacies. Both the vector species were found resistant to DDT, malathion and deltamethrin. The emergence of insecticide resistance in both vector species, compromises the effectiveness of commonly used public health insecticides. Consequently, the implementation of robust insecticide resistance management strategies becomes imperative. To effectively tackle the malaria transmission, a significant shift in vector control strategies is warranted, with careful consideration and adaptation to address specific challenges encountered in malaria elimination efforts.

中文翻译:

绘制印度哈里亚纳邦疟疾病媒和杀虫剂耐药性图:对病媒控制策略的影响

要在流行地区有效控制和消除疟疾,就必须全面了解当地负责疟疾传播的蚊子种类及其对杀虫剂的敏感性。该研究是在印度哈里亚纳邦努赫(梅瓦特)地区疟疾高发区乌吉纳初级卫生中心进行的。通过室内静息收集、诱光器收集和除虫菊喷雾收集,对成蚊收集进行每月昆虫学调查。还从该地区常见的不同繁殖地点收集了幼虫。对收集的媒介蚊子进行了杀虫剂抗性生物测定、媒介归罪、血粉分析。调查期间共捕获成年按蚊34,974只,其中按蚊以亚纹按蚊为主(54.7%)。在媒介中,史氏按蚊占主导地位(15.5%),其次是库西按蚊(10.1%)。 An 的人类血液指数 (HBI)。 culicifacies 和 An。斯蒂芬西分别为 6.66 和 9.09。媒介归罪结果显示,间日疟原虫的阳性率为 1.6%。 culicifacies。这两种媒介均被发现对滴滴涕、马拉硫磷和溴氰菊酯具有抗药性。两种媒介物种出现杀虫剂抗药性,损害了常用公共卫生杀虫剂的有效性。因此,实施强有力的杀虫剂抗性管理策略势在必行。为了有效应对疟疾传播,需要对病媒控制策略进行重大转变,并仔细考虑和调整以应对消除疟疾工作中遇到的具体挑战。
更新日期:2024-04-17
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