A Food and Drug Administration official who stepped down less than two weeks ago is getting his job back as the agency’s top vaccine regulator. Dr.

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

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.