Stomach Flu 2024 Florida Health. The stomach flu (norovirus) is an acute form of gastroenteritis, or inflamed stomach or intestinal lining caused by a virus, bacteria or parasite. This condition, often called stomach flu, is usually harmless, except for infants and people with.

Find info on norovirus symptoms, causes, prevention, current outbreaks, and reporting systems. The stomach flu (norovirus) is an acute form of gastroenteritis, or inflamed stomach or intestinal lining caused by a virus, bacteria or parasite.