I've taken 3 Covid antibody tests. I took the tests back in April, May, and July. I took the tests more out of curiosity than anything else. My girlfriend had the Rona back in Feb - she had flu-like symptoms for a week but that was before testing was occurring with regularity. She took the antibody test in April and tested positive for the antibodies.
I had one negative test and two "inconclusive" test results. I had "insignificant traces of the antibody" and so the tests were deemed "inconclusive". The frustration for me is that no one has been able to explain to me what "inconclusive" and "insignificant traces" mean. Isn't this binary? You're either pregnant or you're not? You've either had the Rona or you haven't? Not sure what to make of this.
It's not cut and dry which is a big part of the problem with this. It probably isn't any different than other viruses but they don't know about it, because they don't do antibody tests on random asymptomatic people. All the data is confusing the hell out of the researchers though. They have never conducted such a mass science experiment before and they are still trying to figure out what it all means, and are going crazy because it keeps throwing curve balls at them. I bet if they did the same amount of testing for other things they would learn that things are not what they thought. Nature is a bitch.