Antibody count falls at first, but relevant antibody-producing cells were found[0] to remain in the bone marrow. I suppose it is not the only determining facto

Antibody count falls at first, but relevant antibody-producing cells were found[0] to remain in the bone marrow. I suppose it is not the only determining factor in susceptibility to symptomatic infection, though. I’d be curious if currently available vaccines stimulate such preexisting antibody-producing bone marrow cells of past COVID patients (which sounds more optimal on the face of it), or they trigger yet another variety of antibodies to be produced in addition to the “native” one. [0] https://www.nature.com/articles/d41586-021-01442-9#ref-CR1 https://www.nature.com/articles/d41586-021-01442-9#ref-CR1 “Had COVID? You’ll probably make antibodies for a lifetime”