There are several reasons why mosquitoes target certain people and leave others alone. Some has to do with smell, some with appearance, but it also comes down to genetics and blood type.
Studies indicate that certain blood types are much more appealing to these blood-sucking insects. This is why some people enjoy outdoor events during mosquito feeding times completely unbothered while others become a mosquito feeding ground.
Female mosquitoes have evolved sensory organs that give them surprisingly effective ways to track humans and animals:
The biggest attractant. Mosquitoes detect trace amounts of CO2 in the air with their antennae.
Sensory organs detect fragrances and odors like lactic acid in sweat or alcohol on breath.
Eyes have developed to detect heat signals in addition to movement and shadows.
Given a choice between Type O and Type A, studies show mosquitoes prefer Type O blood.
Different blood types carry unique proteins called antigens that cover red blood cell surfaces. Mosquitoes are definitely attracted to one type over others:
Studies show mosquitoes are 2x more likely to target individuals with Type O blood than those with Type A blood. Type B falls somewhere in between.
Contains only A antigens
Contains only B antigens
Contains AB antigens
Contains no antigens
Antigen Secretions: Individuals produce these antigens in body secretions. Type A carriers secrete Type A antigens, while Type O carriers secrete a Type H antigen (a precursor to other blood types).
Three different studies have proven that Type O blood is the preferred blood type:
Study on malaria vectors indicated mosquitoes preferred Type O blood over other types.
Study showed mosquitoes preferred Type O to Type A based on blood type and antigen secretions.
Study tried to determine why Type O is preferred but was unable to find a definitive reason.
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Call (866) 326-2847Why do mosquitoes prefer Type O? The exact reason is unknown. Studies show no impact on mosquito fertility, fecundity, or egg production. The only potential reason: Type O blood has the highest digestibility rate.
The CDC identifies mosquitoes as the deadliest animals on the planet, spreading malaria, dengue fever, yellow fever, zika virus, and more. Knowing blood type preferences helps disease experts model how diseases spread and make recommendations for high-risk individuals.
Apply repellent containing at least 20% DEET to exposed skin.
Combine habitat modification, pesticide application, and exclusion to eliminate egg-laying sites and home access.
If you have noticed increased mosquito activity, call EcoGuard Pest Management to have a licensed mosquito control expert inspect your property. We will identify problematic areas and create a customized treatment strategy using integrated pest management to effectively exterminate all signs of mosquito activity.
According to research, Type A blood consistently appears to be mosquitoes' least favorite blood type, falling behind both Type O and Type B.
Several studies confirm that Type O blood is a female mosquito's favorite. While the reason is uncertain, Type O blood appears to be the easiest for mosquitoes to digest.
Mosquitoes have excellent sensory organs with an exceptional sense of smell. Different blood types are identified by chemical signals secreted from skin in sweat and other bodily fluids.
