Gastroenteritis, commonly known as \"stomach flu,\" is an inflammation of the lining of the stomach and intestines. It is primarily caused by *viruses* (e.g., Norovirus, Rotavirus), but can also result from *bacteria* or *parasites*. This widespread illness affects people of all ages globally, particularly young children and those in areas with inadequate sanitation.
Transmission methods vary. Please consult CDC or WHO resources for specific information.
Contagious Period: Varies by disease
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Our AI-powered surveillance hasn't detected significant Gastroenteritis activity in the past 30 days.
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Currently, Gastroenteritis case counts are within baseline expectations globally. However, diseases can emerge rapidly, which is why continuous monitoring is critical.
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Trusted information from leading health organizations
Global disease surveillance and guidelines from the World Health Organization
View WHO Resources →Disease information on Virus Watcher is reviewed by our Chief Epidemiologist, a former CDC lead analyst for FluSight forecasting. Outbreak data is aggregated from verified sources including BEACON, ProMED, WHO, CDC, and 50+ national health agencies. This information is for educational purposes and should not replace professional medical advice.
Last reviewed: 2026-03-05
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