A health warning for anyone who traveled through Logan Airport in Boston recently. Public health officials say there was a potential measles exposure in Terminal B on July 20. The exposure lasted ...

Vaccination rates have been falling across the United States for years. In the past decade, California, Connecticut, Maine and New York have removed such exemptions in an effort to drive up ...

In the last decade, the percentage of kindergartners with medical exemptions has held steady, at about 0.2%. But the percentage with nonmedical exemptions has risen.

The US is experiencing its worst year for measles in over three decades, with more than 1,300 cases in 40 states as of July 16. Cases were almost as high in 2019, putting the country’s measles ...