Eliningaya J Kweka, Marit Farenhorst, Tessa van Dijk, Maria Zinga, Anne Osinga, Humphrey Mazigo
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引用次数: 0
Abstract
Backgound objectives: A small-scale In2Care® EaveTubes (ET) new malaria vector control product efficacy study was carried out at Kagera Sugar Ltd, Missenyi, Tanzania between October 2019 and July 2020. Its main aim was to gather proof of impact against wild populations of anopheline mosquitoes (malaria vectors) in Tanzanian rural field settings.
Methods: In total, 350 Eave Tubes were installed in 100 iron sheet barrack rooms and 35 mud houses in a selected camp where workers of Kagera Sugar Ltd resided. Two similar camps did not receive any malaria interventions and served as control sites to monitor baseline mosquito densities. During the 9-month intervention period, the quality and durability of the insecticide- treated ET were tested. Entomological sampling was conducted to assess indoor mosquito densities pre- and post ET installation. Furthermore, malaria disease cases were monitored through passive case detection at the local health facility to indicate potential epidemiological impacts.
Results: Entomological data showed that ET significantly reduced indoor anopheline vector densities by 58% overall and 75% during the peak mosquito season. Quality control results showed no degradation of insecticide content or mosquitocidal efficacy of ET netting samples used for 6 months under field conditions. Malaria incidence results showed a decline in disease cases in the ET-treated camp and the control camps, compared to the baseline. The highest malaria case incidence reduction was in the ET intervention camp (25.6%).
Interpretation conclusion: These findings indicate a high efficacy and durability of ET against wild malaria mosquitoes. Eave Tubes can be a new tool in the malaria control toolbox, complementing malaria vector control tools available in areas where insecticide resistance has compromised existing vector control tools.
期刊介绍：
National Institute of Malaria Research on behalf of Indian Council of Medical Research (ICMR) publishes the Journal of Vector Borne Diseases. This Journal was earlier published as the Indian Journal of Malariology, a peer reviewed and open access biomedical journal in the field of vector borne diseases. The Journal publishes review articles, original research articles, short research communications, case reports of prime importance, letters to the editor in the field of vector borne diseases and their control.
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