Racial and Ethnic Distribution of ABO Blood Types - BloodBook.com, Blood  Information for Life
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Rare blood types can cause Blood supply problems    for unprepared Blood banks and hospitals. For example, the rare Blood    type Duffy-negative Blood, occurs much more frequently in people of    African ancestry. The relatively rarity of this rare Blood type in the    rest of the North-American population can result in a shortage of that    rare Blood type for patients of African ethnicity, in need of a Blood    transfusion. Keep in mind, if you have a rare Blood type, there may be    some risk in traveling to parts of the world where your rare Blood type    may be in short supply. Knowledge of ABO Blood type frequency can be    life saving information. Blood    test results, Blood tests, Rare Blood types, blood disorders.
The frequency with which    Blood types are observed is determined by the frequency with which the    three alleles of the ABO gene are found in different parts of the world.    Variation in this allele frequency of the ABO gene reflects the social    tendency of populations to marry and reproduce within their national,    regional, or ethnic group. As people throughout the world intermingle to    a greater degree, the distribution of the different Blood types will    continue to become more uniform. Red cell antigens are the pheno-typical    expression of our inherited genes. One of the most common questions that    we get is about the the ethnic and racial distribution of human Blood    groups. In response, following here is our collection of basic ABO Blood    group data, sorted by people groups.
One note; we do not    consider the very small percentage of individuals who inherit unusual    combinations of "minor" antigens. Everyone carries substances on their    red Blood cells, called antigens. In addition to the well known ABO    classified groupings, and Rh factor, there are over 260 "minor" antigens    that have been identified. These antigens may appear in varying    combinations. The presence or absence of these specific "minor" antigens    single out that particular Blood type as being "rare." All Blood types    are inherited and therefore certain rare Blood combinations are more    common in specific ethnic and racial groups. We review this subject HERE . Discount    coupons for DNA tests.
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There is precise and    up-to-date data available. These racial and ethnic Blood typing and    population migration statistics are important in modern medicine for    many reasons. The overriding problem in obtaining and publishing this    information in the United States, and to a slightly lesser extent in    Western Europe, is political correctness. It is not nice to talk about    the ways that I may be different from you!
This data has some holes in    it; there are national and/or ethic groups whose statistics are not    known to BloodBook.com. Those are noted with a
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Rare Blood Types
ABO Blood Type Distribution    Geographic Study
A Word about Blood-related DNA Genealogy and Anthropological Sampling - The relatively new science of DNA research applied to full-blooded,    indigenous populations from around the world has led to the discovery    and documentation of genetic markers that are unique to populations,    ethnicity and/or deep ancestral migration patterns. The markers having    very specific modes of inheritance, which are relatively unique to    specific populations, are used, among other things, to assess ancestral    and kinship probabilities. The following chart considers only these    full-blooded, indigenous groups.