RARE BLOOD TYPES
A rare Blood type is any Blood type that is difficult to find. A Blood type is classified as rare when more than 200 donors have to be screened to find one compatible donor with Blood of that type. In the "ABO" system, all Blood belongs to one of four major group: A, B, AB, or O. But there are more than two hundred minor Blood groups that can complicate Blood transfusions. These are known as Rare Blood Types. About one person in 1,000 will inherit a rare Blood type. Normally expressed in a letter or two, with maybe a plus or a minus, these few persons read their Blood type in an extensive series of letters in addition to their 'ABO' type designation.
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African American Black Special Needs, Please CLICK HERE.
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last updated 09/10/2005 bloodbook.com