The formation of antibodies is not something that can happen in a vial of
human blood. It is a very complex process that takes place in the
human body, involving lymph nodes, bone marrow, thymus etc.
Finally I don't understand what would be the motivations for infecting someone this way and then going on to contaminate the vials etc. it just doesn't make any sense.
Even if it did (which it don't) why would that lead you to question your own HIV result, alexjune1971?