https://www.health.harvard.edu/blog/...-2020081020734
an article on antibody /antigen covid tests.
Antibody tests are more likely to be false negative arly after recovring from infection - ie a few weeks.
More than amonth out from infection - falase megatives are more rare.
false positive tests - vary - .i refer you to teh quote article link.
Fingerstick blood is drawn up in a capillary tube - and added to a test disc.
results are in 10 minutes.
simple, easy, and not a blood draw.
IMHO!
If knowledge of your antibody status will change your medical care - or social activities - it is likely worth the minimal expense.
Good question - DF!