Interesting; I have wondered about that since I take an ACE inhibitor. I suspect I had CoViD back last winter. I would like to be tested for the antibodies.
I will have to deal with this later today.
I do not recommend getting tested for antigens.
If you are tested positive for antigens, it will be reported as a new positive COVID case, adding to the deception.
If you test + for Ab, you may be quarantined even if you have no symptoms, as a precaution,
just sayin’....