Symptoms usually develop between 12 to 48 hours after a person is exposed to norovirus. It is also possible for someone to never show symptoms of the virus but still be contagious. The most common symptoms include diarrhea, vomiting, nausea and stomach pain. Less common but still possible are fever, headache and body aches.

Outbreaks of the highly contagious "winter vomiting bug" are at their highest recorded level in years in the U.S. Here's how to reduce your chances of catching it.

Cases of norovirus, a highly contagious stomach bug, are surging in parts of the United States this winter, according to government data.

If COVID-19 taught us anything it's that washing your hands is often the best thing to do to prevent the spread of infections, including norovirus.

Norovirus, aka the stomach flu, is surging across the United States as 2025 begins. Here's what to know about norovirus symptoms, how it spreads, and prevention.