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.

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.

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