Vinay Prasad’s ouster as the Food and Drug Administration’s top vaccine and gene therapy regulator came after frustration over his handling of experimental treatments.

The former official, Vinay Prasad, had been on the job three months and had recently come under attack by conservative provocateur Laura Loomer.

A spokesperson for the Health Department has said that Vinay Prasad did not want to be a "distraction to the great work of the FDA in the Trump administration."