If you or someone in your family has suddenly found their stomach doing flip-flops chances are it's what's going around.
Gastroenteritis is the general term for infections of the digestive system.
This includes what many people refer to as the "stomach flu." Attacks of stomach flu can range from mild to very severe and last a surprisingly short length of time to a few days.
This latest bug seems to run its course in less than 24 hours. But what it lacks in longevity, it makes up for in severity.
The symptoms can include: nausea and vomiting, stomach cramps, muscle aches and fatigue.
Most cases are resolved on their own, but one possible side effect is dehydration.
That risk is highest for the elderly and young children. Doctors' orders to avoid dehydration include drinking lots of clear liquids, avoid eating until the vomiting has stopped and bed rest is usually helpful.