Mosquitoes are picky eaters - we studied 3 common South Florida species to learn why they like some people more than others

Key Points:

• Researchers studied three mosquito species—Aedes aegypti, Aedes albopictus, and Culex quinquefasciatus—in South Florida to understand their preferences for human hosts based on skin odors and microbes.
• Each mosquito species showed distinct attraction patterns: Aedes aegypti favored men with more Staphylococcus bacteria and fewer cyclic alcohol odors, Aedes albopictus preferred people with ketone-rich odors and certain bacteria like Streptococcus intermedius, while Culex quinquefasciatus was drawn to fewer odors overall and monoterpenes such as alpha-pinene.
• Some odors and bacteria, such as the fruity scent ethyl 2-methylbutanoate and Corynebacterium kefirresidentii, attracted all three species, whereas others like 1-penten-3-ol were generally unattractive.
• No single participant was universally attractive to all mosquito species, indicating that mosquitoes have species-specific preferences influenced by the unique microbial communities on human skin.
• Understanding these mosquito preferences could aid in developing targeted repellents and probiotic treatments to reduce mosquito bites and the spread of mosquito-borne diseases.