Jj Vacci News Today

But what do you think in terms of mixing and matching, what do you think of this? does it help? to your point of needing harmony, do you think it confuses? >> weve seen some people lack access to one vaccine or another and have no other option to get a boost er with an alternative vaccine. i think that will be less of an issue in the united states because we have an abundance of vaccines. its well-done study, but it is a small study, 450 people, as elizabeth cohen points out. i think theres a bu...