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<p>Background: Malaria is a leading public health concern in Ethiopia, despite the implementation of vector control interventions. To step up effective malaria prevention efforts, it is imperative to monitor <i>Anopheles</i> behaviour. This study aimed to investigate the feeding behavior of <i>Anopheles</i> in selected localities of Dembiya District. Methods: From June 2018 to May 2019, indoor and outdoor samples of adult <i>Anopheles</i> were collected from Guramba Bata and Arebiya study sites using Center for Disease Control miniature light traps (CDC light trap), pyrethrum spray catches, artificial pit shelters, and mouth aspirators. Collected <i>Anopheles</i> mosquitoes were identified to a species level and their blood meal source was determined using enzyme-linked immunosorbent assay (ELISA). Results: <i>Anopheles arabiensis</i> showed a six times greater preference for bovine blood than to human blood. Similarly, <i>An. pharoensis</i> showed 15 times high preference for bovine than a human blood. The difference between the indoor and outdoor Human Blood Index (HBI) of <i>An. arabiensis</i> was statistically significant. Conclusions: This study revealed that <i>An. arabiensis</i>, <i>An. pharoensis</i> and <i>An. funestus</i> had a higher preference for bovine blood over human blood. Thus, it is crucial to consider cattle’s and other domestic animals when designing vector control strategies.</p>

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Host feeding preferences of malaria vectors in Dembia district, Northwestern Ethiopia

  • 期刊论文

  • 发表日期：

    2025年8月11日

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  • Mihretu Tarekegn,
  • Sisay Dugassa,
  • Yohannes Negash,
  • Habte Tekie,
  • Yitbarek Woldehawariat

摘要

Background: Malaria is a leading public health concern in Ethiopia, despite the implementation of vector control interventions. To step up effective malaria prevention efforts, it is imperative to monitor Anopheles behaviour. This study aimed to investigate the feeding behavior of Anopheles in selected localities of Dembiya District. Methods: From June 2018 to May 2019, indoor and outdoor samples of adult Anopheles were collected from Guramba Bata and Arebiya study sites using Center for Disease Control miniature light traps (CDC light trap), pyrethrum spray catches, artificial pit shelters, and mouth aspirators. Collected Anopheles mosquitoes were identified to a species level and their blood meal source was determined using enzyme-linked immunosorbent assay (ELISA). Results: Anopheles arabiensis showed a six times greater preference for bovine blood than to human blood. Similarly, An. pharoensis showed 15 times high preference for bovine than a human blood. The difference between the indoor and outdoor Human Blood Index (HBI) of An. arabiensis was statistically significant. Conclusions: This study revealed that An. arabiensis, An. pharoensis and An. funestus had a higher preference for bovine blood over human blood. Thus, it is crucial to consider cattle’s and other domestic animals when designing vector control strategies.