Stomach Flu 2024 Symptoms 2024. Norovirus, the leading cause of acute gastroenteritis, is still spreading across the u.s. Gastroenteritis, also known as stomach flu, is an inflammation of the stomach and intestines that can be caused by viruses, bacteria or parasites.
Norovirus is the leading cause of vomiting and diarrhea, and foodborne illness in the united states. Learn about the symptoms, causes, prevention and treatment of viral gastroenteritis, an intestinal infection that can cause diarrhea, vomiting and stomach.