ArticleNature communications2026
Mosquito repellency mediated by skin commensal Bacillus species via volatile metabolite reprogramming.
Article in Nature communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Individual variation in human attractiveness to mosquitoes critically influences vector-borne disease transmission, and this phenomenon arises from multiple underlying factors. This study integrated human skin microbiome profiling, non-human primate in situ intervention, and volatilomics to uncover a microbial-mediated mechanism underlying host-specific mosquito repellency. Bacillus species were identified as a microbial signature associated with reduced mosquito attraction in humans. Targeted Intervention of B. licheniformis and B. paralicheniformis on primate skin was sufficient to significantly reduce mosquito attraction, thereby establishing a causal microbial contribution beyond descriptive correlations. Mechanistic analyses revealed that Bacillus enrichment reprogrammed the skin volatilome, specifically increasing the abundance of aromatic and fatty acid-derived effectors, such as p-Cresol and decanoic acid, which are associated with repellency phenotypes. Together, these findings revealed a potential role of skin commensals in shaping mosquito host-seeking behavior, providing a molecular basis for microbiome-informed and bio-inspired strategies for mosquito disease control.
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