Rumors are spreading all over the place.’ Experts fear the cancellation signals a sidelining of science at federal health agencies under Robert F. Kennedy Jr.’s leadership.

The Vaccines and Related Biological Products Advisory Committee was supposed to meet on March 13 to recommend to the agency which flu strains should be included in influenza shots for the Northern Hemisphere’s next flu season.

The U.S. Food and Drug Administration confirmed on Thursday that a meeting of its independent advisory panel to discuss the composition of this year's flu vaccine has been canceled and the regulator would instead make recommendations later.

The Food and Drug Administration unexpectedly canceled an annual meeting of its advisers to update next season's influenza vaccines, raising concerns about the timeline for manufacturing next winter's flu shots.