I was told by one of researchers that the risk side is accumulation of “wrong antibodies” which may eventually target own tissues as autoimmune diseases. Any new shot increases this small risk. This is more true for complex vector vaccine like AZ, as they trigger generation of antibodies not only to carrier but also to vector. Anyway, I already got third shot of a vector vaccine.
I was told by one of researchers that the risk side is accumulation of “wrong antibodies” which may eventually target own tissues as autoimmune diseases. Any new shot increases this small risk. This is more true for complex vector vaccine like AZ, as they trigger generation of antibodies not only to carrier but also to vector. Anyway, I already got third shot of a vector vaccine.