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, ...
Dr. Marlene Wolfe, the Co-principal investigator with WastewaterSCAN said there is increased detection of norovirus at California's wastewater testing sites.