Since these "vaccines" don't create "antibodies," that would be an easy test to create.
No vaccine creates antibodies, not mRNA COVID vaccines, not modified virus COVID vaccines, not flu vaccines, not MMR vaccines, not DPT vaccines, not tetanus vaccines, not the original cowpox scratches against smallpox, ... NO VACCINE CREATES ANTIBODIES. HUMAN BEINGS' IMMUNE SYSTEMS CREATE ANTIBODIES IN RESPONSE TO EXPOSURE TO VACCINES, JUST AS THEY CREATE ANTIBODIES IN RESPONSE TO INFECTIONS. (And yes, the internet version of shouting was warranted.)