According to Health Day News, Norovirus (also known as the Cruise Ship Virus) now affects more kids than Rotovirus. "Norovirus, the infamous stomach bug that's sickened countless cruise ship passengers, also wreaks havoc on land.
Each year, many children visit their doctor or an emergency room due to severe vomiting and diarrhea caused by norovirus, according to new research from the U.S. Centers for Disease Control and Prevention. The CDC report estimated the cost of those illnesses at more than $273 million annually.
"The main point we found was that the health care burden in children under 5 years old from norovirus was surprisingly great, causing nearly 1 million medical visits per year," said the study's lead author, Daniel Payne, an epidemiologist with the CDC. "The second point was that, for the first time, norovirus health care visits have exceeded those for rotavirus." more 
Have you or your children ever had Norovirus?