FDA Vaccine Chief Vinay Prasad Leaving Agency Again
In this undated photo provided by the U.S. Food and Drug Administration, Vinay Prasad smiles for a portrait. AP/U.S. Food and Drug Administration hide caption toggle caption AP/U.S. Food and Drug Administration WASHINGTON — The Food and Drug Administration's embattled vaccine chief, Dr. Vinay Prasad, is once again leaving the agency — the second time