A tiny, tiny villain (a type of virus) can attack your body and cause measles.
It can make you feel really sick, with high fever, a rash, a cough, and red eyes.

Measles spreads super fast from one person to another. That is why kids with measles need to stay home or go to the hospital and follow the doctor’s treatment.

But here is the good news: there is a vaccine that protects kids and grown-ups from measles. So the villain can’t win!