Any data w democrats vs. Republicans on antibodies? Didn't Republican states have more cases?
To my knowledge, no one is asked for political party when going for antibody test. Perhaps some social researcher is studying this, but I doubt it.
There are reports of people getting sick or dying of covid who state their political leanings, and those are generally republicans, but that is expected, given that most infections are now among the unvaccinated, and most of the unvaccinated are republicans.
The data on red/blue states was really a first stab at trying to figure what was going on, before we had the kind of data we have now on r/d affiliations which is more meaningful.