Measles is caused by a highly contagious virus that’s airborne and spreads easily when an infected person breathes, sneezes ...

Measles has been confirmed in a Los Angeles County resident who recently returned from Texas, health officials said Friday.

A fifth case of measles is now confirmed in Colorado. It's the third case in Denver. An adult got measles after traveling to ...

Not since Franklin Roosevelt has a new president driven so many shifts, so fast. Here's 100 things that have already changed ...