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<p>The increasing number of imported and locally transmitted cases of dengue and chikungunya in Europe is raising concerns, prompting local authorities to regulate <i>Aedes</i> <i>albopictus</i> populations. The development and commercialization of olfactory traps are contributing to the reduction of mosquito populations and biting nuisances. These traps mimic human host by emitting only two to three bacterial-derived volatiles organic compounds. However, they are less attractive to <i>Aedes</i> species than live human hosts or natural odor blends collected directly from humans. Using seven representative microbial species isolated from the skin microbiota of human volunteers, we successfully created an attractive microbial blend that enhanced the effectiveness of commercial olfactory traps in attracting field <i>Ae.</i> <i>albopictus</i> mosquitoes. This effect is likely due to a synergistic interaction between attractive compounds emitted by the microbial blend and commonly used attractants in commercial lures. Our results highlight the importance of considering the complexity of the human skin microbiota, including yeasts, to identify new volatile organic compounds that could enhance the capture efficacy of olfactory traps. Incorporating these compounds into traps could improve the capture of <i>Ae.</i> <i>albopictus</i> females in field settings, though further investigation is needed to ensure their stable and effective release.</p>

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Enhancing the efficacy of mosquito traps: a human skin microbial blend-based approach

  • 期刊论文

  • 发表日期：

    2025年6月6日

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  • Simon Malassigné,
  • Laurent Vallon,
  • Edwige Martin,
  • Guillaume Meiffren,
  • Harouna Tahirou Hima,
  • Guillaume Minard,
  • Fabien Busquet,
  • Victor Dessaint,
  • Gérard Benbassat,
  • Claire Valiente Moro,
  • Patricia Luis

摘要

The increasing number of imported and locally transmitted cases of dengue and chikungunya in Europe is raising concerns, prompting local authorities to regulate Aedes albopictus populations. The development and commercialization of olfactory traps are contributing to the reduction of mosquito populations and biting nuisances. These traps mimic human host by emitting only two to three bacterial-derived volatiles organic compounds. However, they are less attractive to Aedes species than live human hosts or natural odor blends collected directly from humans. Using seven representative microbial species isolated from the skin microbiota of human volunteers, we successfully created an attractive microbial blend that enhanced the effectiveness of commercial olfactory traps in attracting field Ae. albopictus mosquitoes. This effect is likely due to a synergistic interaction between attractive compounds emitted by the microbial blend and commonly used attractants in commercial lures. Our results highlight the importance of considering the complexity of the human skin microbiota, including yeasts, to identify new volatile organic compounds that could enhance the capture efficacy of olfactory traps. Incorporating these compounds into traps could improve the capture of Ae. albopictus females in field settings, though further investigation is needed to ensure their stable and effective release.