North Dakota is the 11th state in the U.S. with a measles outbreak, logging its first cases since 2011.

The most vulnerable populations are those who are unvaccinated because of medical conditions, personal reasons or children ...

North Dakota is the 11th state in the U.S. with a measles outbreak, logging its first cases since 2011.

CHICAGO (WLS) -- A sixth case of measles has been reported in Illinois for this year. Four of the cases were reported in ...