The antibody test they run with a blood donation also mentions it will not detect antibodies from the vaccination. Sure enough, my antibody test came back negative.
Then there’s this:
https://www.pbs.org/newshour/health/covid-antibody-test-after-vaccineConversely, a lack of antibodies detected does not mean that a vaccinated person did not have a protective immune response. The COVID-19 vaccine trains immune cells to notice and attack the signature spike protein. Antibody tests may look for different antibodies that are only produced after natural infection. “Therefore, COVID-19 vaccinated people who have not had previous natural infection will receive a negative antibody test result if the antibody test does not detect the antibodies induced by the COVID-19 vaccine,” according to the FDA.
