Judge Blocks H.H.S. From Terminating $11 Billion in Public Health Grants

A coalition of states sued over the Trump administration’s unexpected move to cut off the funds, which they said imperiled everything from childhood vaccination programs to opioid addiction treatment.

Top FDA Vaccine Official Resigns, Citing Kennedy’s ‘Misinformation and Lies’

Dr. Peter Marks, a veteran of the agency, wrote that undermining confidence in vaccines is irresponsible and a danger to public health.

H.H.S. Scraps Studies of Vaccines and Treatments for Future Pandemics

Federal officials cited the end of the Covid-19 pandemic in halting the research. But much of the work was focused on preventing outbreaks of other pathogens.

Trump Moves Toward Pushing Openly Transgender People Out of Military

The president also ordered the Pentagon to end diversity programs, reinstate many service members dismissed for refusing the coronavirus vaccine and create a new missile defense system.

C.I.A. Now Favors Lab Leak Theory to Explain Covid’s Origins

A new analysis that began under the Biden administration is released by the C.I.A.’s new director, John Ratcliffe, who wants the agency to get “off the sidelines” in the debate.

Health Secretary Defends Biden’s Covid Vaccine Mandates and Social Media Efforts

In a wide-ranging interview, Xavier Becerra, President Biden’s health secretary, defended his tenure and hinted that he might run for governor of California.

RFK Jr. Sought to Stop Covid Vaccinations 6 Months After Rollout

Robert F. Kennedy Jr. petitioned the F.D.A. to revoke authorization of the shots at a time when they were in high demand and considered life-saving.