1. A highly contagious virus that causes acute gastroenteritis, characterized by vomiting, diarrhea, and stomach cramps.
Usage: Medical/scientific term; Often called 'stomach flu' or 'winter vomiting bug' in informal contexts, though not related to influenza

Examples

• The norovirus outbreak spread rapidly through the cruise ship, affecting hundreds of passengers.
• Norovirus is one of the leading causes of acute gastroenteritis in adults worldwide.
• The school closed for two days due to a norovirus outbreak in the cafeteria.
• Symptoms of norovirus typically appear within 24 to 48 hours of exposure.
• Hand hygiene is crucial for preventing the spread of norovirus.
• The norovirus season typically peaks during the winter months.