In my contracts I clearly state that if anyone in the household or in direct care of the children is sick with ANY illness sich as the flu, or of contagious nature, the child is to remain out of my care until the sick have been well for a full 48 hrs. Every year during cold and flu season i post it on the front door to help remind parents of my rules. I would not open if anyone in my home was ill with a contagious sickness to prevent spreading to every who enters, I expect the same from my day care families. Have had kids spill the beans in mid day before that Mom or Dad is home ill, throwing up and such...I don't care if the kid has already been here half the day..I call the Mom or Dad for immediate pick up! that to me is common sense, especially something as contagious as the flu, keep it away from others!