If you want to show that the tests were inaccurate or produced an erroneous result please do so with your sources cited.
Or if you can cite your own verifiable expertise in the use the instruments involved in doing these tests and the interpretation of the results, please do so.
I'll wait but I won't hold my breath. Until you can do more than just bray about a paper that was prepared by your intellectual superiors, I really have no time to waste guessing which card your “pea” of relevance is under.
Re-read post 135 by Stultis. It is all spelled out there.
Do you have any idea how antibodies are structured and how the tests work?