CMC Chief Medical Officer says more research needed before we know if booster is necessary

CMC Chief Medical Officer says more research needed before we know if booster is necessary

FDA and CDC advise against boosters for now Subscribe to WMUR on YouTube now for more: http://bit.ly/1lOjX9C Get more Manchester news: http://www.wmur.com Like us:   / wmur9   Follow us:   / wmur9   Instagram:   / wmur9