The man who hopes to be President Donald Trump’s health secretary repeatedly asked to see “data” or “science” showing vaccines are safe – but when an influential Republican ...

RFK Jr. is a high-profile face of vaccine hesitancy, but people's vaccine concerns fall on a much broader spectrum.

A prophylactic antibody-based immune therapy protects monkeys against severe disease caused by H5N1 avian flu, University of Pittsburgh and NIH Vaccine Research Center researchers report today in ...