Vinay Prasad is returning to his role overseeing vaccine, gene therapy and blood product regulation at the U.S. Food and Drug Administration a little more than a week after he left the agency. "At the FDA's request,

Vinay Prasad, the U.S. Food and Drug Administration's top vaccine regulator, is returning to his post less than two weeks after the White House had him ousted.

Vinay Prasad returns as FDA's CBER director after brief exit, raising questions on rare disease drug approvals and mRNA vaccine oversight.