Robert F. Kennedy Jr. came under fire after posting a photograph of himself hiking in California as a deadly measles outbreak ...

Measles was declared eliminated in 2000 in the U.S., but it has been making a comeback in recent months amid rising anti-vaccine sentiment.

Robert F. Kennedy Jr, who oversees the health of more than 340 million Americans, says vitamin A can prevent the worst ...

Measles is a highly contagious respiratory illness spread by contact with an infected person through coughing and sneezing.