Vinay Prasad, named to lead the FDA agency tasked with regulating vaccines and gene therapy, has made controversial comments regarding the government response to the COVID-19 pandemic.

The U.S. Food and Drug Administration said on Wednesday it will hold a meeting of experts on May 22 to discuss COVID-19 vaccine recommendations for the upcoming immunization campaign. The meeting comes after the appointment of Martin Makary as FDA commissioner.

There’s new uncertainty about updated COVID-19 shots this fall after the Trump administration’s handling of a shot from Novavax.