Stomach Bug 2024 Lasting A Long Time. No, it's gastroenteritis caused by novovirus how to stop a stomach. Norovirus infection symptoms usually last 1 to 3 days.

Learn how long you can pass stomach flu, or gastroenteritis, to others and how to stop the spread of viruses that cause it. Stomach flu usually only lasts a few days, but it may last up to a week or two in severe cases.