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A member asked:
I had hiv eia (enzyme immunoassay) testing done and it has been non-reactive. what else could be causing the p41 band (igg & igm) to be positive?
A doctor has provided 1 answer
Cross-reactivity: Your body antibodies to a protein that shares some structure with p41. This is the reason to look for antibodies to multiple HIV proteins, rather than relying on one. Antibodies do cross-react with proteins similar to the one that elicited the antibody.
Answered 8/7/2015
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