Recently, cases of norovirus (popularly called winter vomiting disease) have increased in the United States. The outbreak highlights the global concern over this highly contagious stomach infection.
About Norovirus
- A common viral infection causing inflammation of stomach and intestines (gastroenteritis).
- Also called stomach flu or winter vomiting bug.
- Outbreaks usually occur in cold months.
- Responsible for 90% of viral gastroenteritis outbreaks and nearly 50% of global cases.
- People can get infected multiple times due to different strains.
Transmission
- Spread through:
- Contact with infected persons.
- Contaminated food or water.
- Touching infected surfaces.
- Common in crowded and closed environments.
- Patients remain contagious from illness onset to 3 days after recovery.
Symptoms
- Vomiting, diarrhoea, stomach cramps, nausea, fever, fatigue.
- Severe cases may lead to dehydration.
Treatment
- No specific medicine or vaccine available.
- Focus on symptom relief and hydration.
- Severe dehydration may require intravenous fluids.
Difference from Influenza (“Flu”)
- Norovirus → causes gastroenteritis (stomach infection).
- Influenza virus → causes respiratory flu (lungs and airways).
Conclusion
Norovirus is a seasonal, highly contagious infection with global impact. Preventive measures like hand hygiene, safe food practices, and awareness are crucial to reduce outbreaks.
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