Vaccine safety experts say more research into the side effects would be welcome yet question whether the health secretary’s effort will be grounded in science.

“It’s a wholly unethical trial, and it shouldn’t be allowed,” says Dr. Paul Offit of Guinea-Bissau study

Pennsylvania health officials said on Wednesday an unvaccinated person in Lancaster County died after contracting measles, raising the state's death toll from ​the disease this year to five.

The cost of the health secretary’s security grew from roughly $10 million in fiscal year 2025 to $17 million in fiscal year 2026.

Administration is holding back Covid vaccines for all children in at least 11 states and one US territory

Read the September 18, 2026 open letter to Secretary Robert F. Kennedy Jr. and President Donald J. Trump.

“My hope is just to create a sense of community,” cohost Jenny Mandl tells TODAY.com. “We hope everybody leaves with a new friend.”

Shutdown of study is latest for Trump administration, which has canceled, frozen and otherwise disrupted more than 5,700 medical research grants over two years

Class action lawsuit seeks to stop censorship and termination of federally funded scientific research

WASHINGTON, D.C. – Energy and Commerce Committee Democratic leaders wrote to Centers for Disease Control and Prevention (CDC) Director Erica Schwartz demanding answers regarding the recent suppression...

CDC announces changes to how it reports measles deaths as Pennsylvania continues to confirm more cases

The 40-year-old woman, who was from Jefferson County was unvaccinated, according to the coroner.

Learn about measles vaccine basics, who should get it, when to get it, and why it's important.

An agreement paves the way for hundreds of millions of dollars’ worth of projects to be transferred from the NIH’s institute for infectious diseases to the Department of Defense.

Under a new partnership, the Defense Department would play a larger role in biodefense and pandemic preparedness. Democrats warned it could allow a Pentagon cash grab.

RFK Jr, the health secretary, has suggested the deaths were ‘fabricated’ while the CDC claimed it was reviewing them

The shots have been approved for people 65 and older, and for younger people with underlying conditions. Others may be able to get them off label.

RFK Jr, the health secretary, has suggested the deaths were ‘fabricated’ while the CDC claimed it was reviewing them

Jay Bhattacharya insists he wants to restore trust in the National Institutes of Health. Current and former agency employees say he’s doing the opposite.

The University of Maryland, College Park, and the University of Maryland, Baltimore, painted a bleak picture of the consequences in federal lawsuit filings.

After his wife Porsha Ngumezi bled to death from a miscarriage in Houston, a Texas father is suing and taking Porsha's story to Capitol Hill.