One expert said that he considered getting boosted 'a no-brainer.'
"There's a technical term, called avidity, and that's sort of how good a lock-and-key fit is there between the immunity induced by the vaccine and the circulating variants," Vermund said."If the lock and key is really good, then two shots seems to be fine. But if the lock and key is not quite as good a fit, like with omicron, then we need a third booster to push the antibody levels up high enough to overcome the fact that the fit is not quite as good.
"The booster is going to help the body mount a quicker and more efficient immune response against the invader, and that's what we want," Vermund added.
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