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prh05a

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Apr 27, 2012
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Does anyone know why we have antibodies already made against blood types that we haven't been exposed to? For example, why does someone with type A who has never had a transfusion have antibodies to type B? It seems to go against the antigen exposure idea that we have always been taught, but I'm sure there is more going on that I don't know about. Just wondering if anyone knows....
 

DrSnips

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Apr 18, 2012
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Does anyone know why we have antibodies already made against blood types that we haven't been exposed to? For example, why does someone with type A who has never had a transfusion have antibodies to type B? It seems to go against the antigen exposure idea that we have always been taught, but I'm sure there is more going on that I don't know about. Just wondering if anyone knows....

Cross-reactivity with bacterial antigens. There was another thread just like this.
 

VisionaryTics

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Jan 14, 2009
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