Mosquito species show distinct preferences for human hosts

A study by Florida International University (FIU) researchers tested 119 human volunteers against three of the world's most dangerous mosquito species and found that no single person was attractive to all three species. Each mosquito species showed distinct preferences based on individual body chemistry, according to findings published in iScience Source: infobae. The research could lead to species-specific repellents and new strategies against mosquito-borne diseases Source: elmundoes.

Species preferences

• Aedes aegypti preferred people without added perfumes and lacking certain volatile compounds, with a slight preference for men Source: infobae.
• Aedes albopictus (Asian tiger mosquito) was attracted to elevated ketone levels and plant-derived volatiles naturally secreted by skin Source: elmundoes.
• Culex quinquefasciatus focused on the skin microbiome, with some bacterial families attracting and others repelling Source: infobae.

Implications

Lead researcher Matthew DeGennaro noted that isolating human odor components that attract or repel mosquitoes could lead to new vector-borne disease strategies Source: elmundoes. The study, led by doctoral student Kaylee Marrero, is the first to directly compare how multiple mosquito species respond to the same people Source: infobae. Marrero expressed surprise that each species had a distinct microbial fingerprint used as a signal Source: elmundoes. Human odor comprises over 1,000 volatile organic compounds, many uncharacterized, and each species evolved different ways to perceive humans Source: infobae.