David Kessler, top CDC health official for Covid vaccines, to leave Biden administration

David Kessler, top health official for Covid vaccines, to leave Biden administration Kessler has served as chief science officer in the administration's coronavirus response since January 2021, playing a key role in the rollout of Covid vaccines. NBC News

... Since January 2021, Kessler has played a leading role in the development and roll out Covid vaccines. He took the reins of the Trump-era initiative dubbed Operation Warp Speed to accelerate vaccine and treatment development.

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