Avoid close contact with people who are sick. If you around people that are sick wear a mask.
Stay home when you are sick. And keep your children home from school when they are sick.
Cover your mouth and nose when you cough or sneeze.
Clean your hands.
Avoid touching your eyes, nose or mouth. Especially when are in public places.
Clean the handles of shopping carts at the grocery store.
Get plenty of rest and eat right.