Public health researchers define vaccine hesitancy as a delay in acceptance or refusal of vaccines despite the availability of vaccination services. A new survey by the Annenberg Public Policy Center ...

So much has changed in American public health under the leadership of Robert F. Kennedy Jr., the secretary of health and human services. Alexandra Sifferlin and Alex Ellerbeck, two editors in Opinion, ...

Public health experts foresee more vaccine confusion after a revised shot schedule is put on hold.

Activists who dispute safety of vaccines are pushing to limit immunization requirements in schools ...