How rare is Ab neg blood?

Answer 1

It is quite rare;between 5-7% of the caucasian population of the world has it. However, it is also the "universal recipient", so that means if you ever need a blood transfusion, they can safely give you ANY type, as long as it's also negative
(AB is universal recipient, O is universal donor)

Answer 2

About 3% of the population is AB neg. Nowm this might sound very low if you are worried about getting a blood transfusion, but take a look at the UK's National Blood Service website:

http://www.blood.co.uk/visually_impaired/vi_stocklevel.html

and you will see that it is in fact the B groups (rather than AB) that are a problem keeping a decent stock of.

AB blood group people tend to be regular donors. B group are usually not donors, but still need blood transfusions, hence there's a problem keeping stock levels up! (There are various social and racial reasons for this, which the NBS is trying very hard to deal with, and change attitudes towards donating blood).

Answer 3

In the general US population, AB negative is the rarest blood type. About 0.5% of people have it, or roughly one in every 200 people.

In the US, the blood types break down as 45% O, 40% A, 10% B and 5% AB. Of those types, 85% are rH positive and 15% are rH negative.

These numbers are different in some other countries because the frequency of blood types varies in different races and populations, although these are the only main types.

Answer 4

abt 2.5%,it's AB blood.