> As another note, the mRNA platform has a few concerns that the viral vector vaccines do not.
E.g. the target patient might already have a good immune response to the vector hull. I.e. the patient's immune systems would destroy the vaccine before it can do its work. One of the vector vaccines against covid did use two different vectors because of that. But repeated usage of the same vector might decrease its effectiveness.
E.g. the target patient might already have a good immune response to the vector hull. I.e. the patient's immune systems would destroy the vaccine before it can do its work. One of the vector vaccines against covid did use two different vectors because of that. But repeated usage of the same vector might decrease its effectiveness.