Health Secretary Robert F. Kennedy Jr. has publicly softened his stance on vaccines under direction from the White House. Behind the scenes, however, a sweeping internal research initiative on vaccine safety has become a central priority for his department.
The effort involves multiple agencies within the Department of Health and Human Services. Staff have been directed to examine vaccine schedules, safety data, and potential links to chronic illness.
Current and former officials describe the research as unprecedented in scale and scope. The inquiry reportedly draws on resources from the Centers for Disease Control and Prevention and the Food and Drug Administration.
Kennedy has not publicly detailed the scope of the investigation. His public silence on the topic marks a notable shift from his previous outspoken criticism.
Internal documents reviewed by the Times outline a broad mandate to reassess existing vaccine studies. The review includes an analysis of childhood immunization protocols and adverse event reporting systems.
The White House has urged Kennedy to avoid public controversy as the administration focuses on other health priorities. Inside the department, the vaccine inquiry continues to expand with significant staff and funding.
Researchers involved in the effort say the goal is to produce independent, government-led assessments. Critics argue the initiative risks undermining public confidence in established vaccine safety.
The investigation has already led to internal disagreements among career scientists. Some have raised concerns about the methodology and potential political influence on findings.
Kennedy remains engaged in the process through senior aides and deputies. His department has not set a formal timeline for releasing any preliminary or final results.
