If you were lucky enough to attend Super Bowl events in Indianapolis last week you may need to see a doctor!
The Indiana State Department of Health says an unknown number of people were exposed to measles at the Super Bowl village.
Officials say a person infected with measles visited the village sometime last week.
So far, there are two confirmed cases of measles in Indiana.
Measles is not usually fatal, but can cause high fever, cough, and a rash on the face and neck.
Most Americans are vaccinated for measles as children.