STATEN ISLAND, N.Y. — Norovirus, also known as the stomach flu, rang in 2025 in a big way across the United States, and continues to surge. The highly contagious virus causes vomiting and diarrhea, ...
Norovirus is technically a group of viruses that cause acute gastroenteritis, or an inflammation of the stomach and intestines that leads to intense diarrhea, vomiting and stomach cramps.
Norovirus causes an inflammation of the stomach or intestines called acute gastroenteritis, according to the CDC. The virus is “very contagious,” and symptoms include vomiting, diarrhea, stomach pain, ...