“A person who has RH negative O blood is able to serve as a donor to any person regardless of their blood type. But if they need blood, only their own type will suffice.
They represent 15% of the human race and are mostly from northern Europe.”
– I knew it, I’m an alien, that explains soooo much
“A person who has RH negative O blood is able to serve as a donor to any person regardless of their blood type. But if they need blood, only their own type will suffice.
They represent 15% of the human race and are mostly from northern Europe.”
– I knew it, I’m an alien, that explains soooo much