I am HlaB27 positive, so was my dad. He is from Irish, my mom from swedish descent.
In Dr. Khan's book, "Ankylosing Spondylitis, the facts", he writes that, "most people with AS have a gene called HLA-B27. In people with with AS this gene is found in over 90% of northern Europeans, about 80% of Mediterranean people, and about 50% of African-Americans. In people without AS this gene is present in only 8% of whites in the US and 2-3% of African-Americans"
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