A CDC vaccine advisory committee meeting scheduled for next week has been postponed. It was the first vaccine meeting since health secretary Robert F. Kennedy Jr. was sworn in.

A panel of experts that advises the Centers for Disease Control and Prevention on vaccine policy will not meet as previously scheduled next week.

The moves by the Department of Health and Human Services represent a substantial shift in the government’s philosophy on transgender and nonbinary issues, toward one that rejects the idea that Americans can identify with a gender other than their sex at birth. The new information aligns with President Donald Trump’s executive orders on the subject.