As Health and Human Services Secretary Robert F. Kennedy Jr. intensifies his drive to reverse decades of vaccine policy, the medical profession joins a growing list of fields and institutions facing unprecedented threats from the federal government under President Donald Trump. But this time the administration may have chosen an adversary with more capacity to fight back than the law firms, major universities and media organizations it has targeted so far.
To many medical professionals, Kennedy’s hostility toward vaccines represents the greatest threat to the nation’s public health system in memory. Medical groups fear that Kennedy’s wide-ranging actions — such as firing all the members of a prestigious advisory committee that advises the federal government on vaccine policy ; narr