In the past week, my daughter, both grands, son, hubby, and myself all got a very violent stomach flu. The ER docs called it Norovirus. Both grands had to go to the ER for fluids since this flu dehydrates small children so quickly. It is highly contagious, so if one family member gets it, it is strongly recommended that you take extreme precautions to prevent the spread of the germ. Hand washing, scrubbing toilets, bathroom floors, etc. with bleach. Even clothing worn during flu should be washed immediately in HOT water. A person who has had the flu should not prepare food for other family members for at least 3 days following their illness. It is a very virulent bug. Just thought I would share what our family learned the hard way.