A nonprofit anti-vaccine group founded by Robert F. Kennedy Jr. is suing him, in his capacity as secretary of the US ...

Health and Human Services Secretary Robert F. Kennedy Jr. hiked Camelback Mountain over the weekend, leaving a lasting impression on fellow adventurers.

NEW YORK — U.S. Health Secretary Robert F. Kennedy Jr. named eight new vaccine policy advisers Wednesday to replace the panel that he abruptly dismissed this week. They include a scientist who ...