The letter was meant to lend credibility to Robert F. Kennedy Jr.’s nomination as secretary of Health and Human Services.

One Republican lawmaker's future in politics is in jeopardy ahead of the Senate Finance Committee's vote on whether to ...

West Virginia Gov. Patrick Morrisey has received a proposal for how to create a religious exemption for childhood vaccines.

Dogs lined up in San Francisco to receive free vaccines Monday to combat an outbreak of a highly contagious illness that can be fatal for some canines.