Be sure to wash your hands frequently, cover your mouth when you sneeze, and stay home if you do get sick!
Doctors are predicting this year's flu is a bad one and the flu shot only protects against half the flu strains out there.
That's because the flu shot has to be made half a year in advance so there is enough time to make vaccines for everyone. But when they're making the flu vaccine, doctor's don't yet know what strain will be floating around out there, making people sick. This year's dominant strains are a bit different than what doctor's expected.
Still, experts recommend getting the flu shot, since it can decrease the severity of the illness.