There is a lot of concern and worry across the United States and beyond following several new decisions from the Trump ...

Robert F. Kennedy Jr. has expressed divisive ideas about vaccines, but some applaud his efforts to target ultra-processed foods in Americans' diets.

More states are loosening vaccine mandates, scaling back vaccine promotion efforts and taking other steps likely to lower vaccination rates — even as a major measles outbreak spreads in Texas.

This week, the Food and Drug Administration — now with vaccine skeptic Robert F. Kennedy Jr. at the helm — unexpectedly and ...