Scientists discovered a way to shut down a mosquito's CO2 receptor neurons, making it more difficult for the insects to detect human scents.

New research points to a new chemical that disables the part of the insect’s brain that is sensitive to human scent, making us invisible to these blood suckers. Of the three main ways that mosquitos sense their targets, scientists decided to focus on the strongest mosquito attractant, carbon dioxide.

A mosquito’s sensitivity to CO2 allows it to detect the person from a distance of up to 30 meters. The scientists at the University of California, Riverside located a class of olfactory sensory neurons called cpA and found that they could overstimulate the neurons to the point where mosquitos can’t detect any CO2.

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