O’Neill, the HHS deputy secretary whom Kennedy appointed to be CDC’s acting director after Susan Monarez’s dismissal last month, said the agency had "lost the American public trust and faith" during ...

The Virginia Department of Health found vaccination rates dropped well below the threshold considered for herd immunity.

Health officials have confirmed the second case of measles in suburban Cook County this year—in a 4-year-old, unvaccinated ...

As they prepared to leave their home early Saturday, Nelson grabbed the polio insurance policy he’d purchased. The year was ...

A monthslong NBC News data investigation finds that much of the U.S. doesn't have the protection needed to stop the spread of ...

A generation ago, infectious childhood diseases were nearly wiped out in the U.S., thanks to immunization programs. In the most comprehensive data investigation of its kind, we show how that ...

The American parents who are choosing to skip or delay vaccines for their children are more likely to home-school their children, be White and very religious, identify as Republican or be under 35, ...

Louisiana Sen. Bill Cassidy (R) wrote to HHS Secretary RFK Jr., urging his support of the whooping cough vaccine amid a nationwide outbreak.

The Trump administration is rejecting basic medical knowledge and turning back the clock to an era when people were sicker ...

The health department said the death is a "painful reminder" of how dangerous measles can be in unvaccinated people.