CNN CNN Newsroom With Poppy Harlow and Jim Sciutto September 1, 2021 13:35:00
Hesitancy dropping and vaccine first doses going up. martin savage, thanks very much. two senior leaders in the fda's vaccine office will be stepping down in the coming months. the retirements coming as the agency works towards major decisions about booster shots as well as vaccines for children under 12. cnn medical correspondent elizabeth cohen joins me now. do we know why they're leaving? >> jim, we don't know why. we do know this is quite a loss. together dr. phil kraus and dr. maryann gruber have more than 35 years experience at the fda. dr. gruber, she headed up the office of vaccine r...