FDA leadership shake-up

The U.S. Food and Drug Administration is facing a deepening leadership crisis following the sudden departure of its top drug regulator, Dr. Tracy Beth H!eg.

H!eg claims she was fired from her position as acting drug chief, making her the second high-ranking official to leave the agency in less than a week.

Her exit follows the resignation of Commissioner Marty Makary and occurs amid intense public scrutiny over the agency's handling of vaccine safety and pharmaceutical approvals.

The shake-up has raised concerns about the stability and independence of the nation's primary health regulatory body.