What is the rarest blood type?

Answer 1

I strongly disagree with everyone above. Just about every people I know are either o+ or o -. I think the rarest blood type would be A or B.

Answer 2

Boy.. if you want wrong answers just read the ones below!!! Type O is the most common. It is in fact the Universal Doner blood type. Type AB is the rarest. Read below!

There are four basic blood types, in order of frequency from most common to rarest they are: O, A, B, and AB.

Answer 3

I think we can divide blood groups in many different fashions. For the A/B/O/+- blood group system, indeed AB- would be the rarest, unless you include the Rh+- extension to that. Then the answer would be AB-/Rh- in north america.

Whatever the system, the rarest and most common group is in fact different from a nation to another, though many of todays countries became cosmopilitan enough to dissimulate that evidence.


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Answer 4

The rarest "common" blood type is AB which is only about 4% of the population in the US.

There is another ABO blood type called "Bombay" phenotype which is insanely rare.

To put in an extremely simplistic sense: people with Bombay phenotype lack the antigen H found on pretty much everyone else, thus they are incompatible with even O blood (the "universal" donor).

Answer 5

We have 8 blood groups A+,B+,O+,AB+,A-,B-,O-,AB-
AB-(negative) is the rearest blood group in the world
next rarest in the US is B- and then AB +
most common blood group in the world is O+
pls go to the following site and find the table which country has which blood group the most and the least in the world.
hope this helps

Answer 6

AB- is the rarest blood type in the United States, with only 1% of the population having it. They can receive blood cells only from O-, A-, B-, and AB- donors, and donate only to AB- and AB+ recipients.

7% of Americans have O- blood, and can receive blood cells only from other O- donors.

40% of Americans have O+ blood and can receive only from O- and O+ donors -- but they can also donate to any other bloodgroup with a positive Rh factor.

Answer 7

O and AB negative.

As an AB negative, you represent just .6 percent of the population, which places you in the rarest blood group. Your red cells can only be given to other AB negative and AB positive patients in need. However, your plasma can be given to any patients, regardless of blood type. We encourage you to consider donating plasma. Plasma donations take about 45 minutes, and the product collected is invaluable to the survival of burn patients, trauma victims, and patients with heart disease and cancer.

Answer 8

Type O

Answer 9

AB negative and O negative...O positive is a universal blood type, types A & B are not uncommon

Answer 10

AB- See http://www.givelife2.org/aboutblood/bloodtypes.asp for the details.