Here’s a look at what Robert F. Kennedy Jr. has said and done since becoming the nation’s top health official on Feb. 13.

The Trump administration is continuing to make its imprint on U.S. vaccine policy in recent days. The moves could change what ...

In addition to myocarditis and pericarditis, rare circulatory-related side effects have been linked to COVID-19 vaccines. One ...

U.S. health officials have expanded warnings about a rare heart side effect associated with the two leading COVID-19 vaccines ...