In North America, an outbreak in Ontario, Canada has sickened 925 from mid-October through April 16. That's on top of cases ...

Montana is the ninth U.S. state to have an active measles outbreak.

Bergen County and other parts of North Jersey recently saw a sprinkling of measles cases, and an expert said the state lost ...

Current public health guidelines only recommend an early third MMR dose for infants traveling internationally.

The virus has been found in 24 states overall, including Alaska, Arkansas, California, Colorado, Florida, Georgia, Hawaii, ...

The U.S. has 800 cases of measles nationwide as of Friday, and two more states identified outbreaks this week. Texas is ...