Eligibility & Registration Dialogue

Does ethnicity affect finding a match?

Ethnic heritage is a very important factor. A patient is most likely to find a matching donor who has the same ethnicity because people from the same ethnic group are more likely to have the same tissue traits. With more than 25,000 known HLA characteristics that can occur in millions of combinations, finding a match is extremely rare. Patients of more diverse ethnic backgrounds also tend to have more diverse HLA types, making it even more difficult to find a match.

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