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O- here but I very, very rarely get bitten. My wife is A and gets it very badly.

Also O- and it's the other way around for us. Mosquitos hunt me but usually leave my wife alone.

Wife is O- and is a mosquito magnet that gets huge welts that take ages to go away. I'm A+ and get bites, but they usually don't last long.

I am skeptical. To figure out the blood type of someone, wouldn’t they need to bite anyway? There are more compelling studies showing effects of CO2 and smells.

O+ here and them pesky skeeters ab-so-lootly LUV me. Summer is antihistamine season.

O+ and they bite me a lot too...