Stomach Flu 2024 Canada 2024. It affects people of all ages, but it causes severe acute gastroenteritis in children. However, outbreaks of enteric illness that may be caused by norovirus that occur in institutions (such as.

Once ingested, the virus targets the lining of the stomach and intestines, leading to inflammation and the characteristic symptoms of norovirus infection, including. Gastroenteritis, also referred to as stomach flu, is inflammation of the stomach and intestinal lining, which causes diarrhea and vomiting.