Norovirus cases are spreading in California and nationwide. Here's what to know about what people are calling the 2025 winter vomiting disease.

Washing your hands with soap and water is a much more effective way to protect yourself from norovirus. That’s because “soap is a detergent, and it can dissolve and break apart the capsid and inactivate the virus pretty efficiently,” he explains.

A new reverse genetics system for norovirus could aid in the development of novel antiviral therapies and vaccines.

A highly contagious stomach bug is making an unwelcome return just in time for the holiday season — and it’s not the flu or Covid. Norovirus, often referred to as the “winter vomiting disease,” has been steadily increasing in the U.

A fast-moving stomach bug is spreading across the country, and if you're not careful, doctors say the foodborne illness could ruin your holiday season.

The CDC has logged 21 outbreaks of gastrointestinal illness on cruise ships that met its threshold for public notification in 2025, 16 of which were caused by norovirus. The illness caused 15 of 18 total outbreaks in 2024, and 13 out of 14 the prior year.

Cases of the dreaded norovirus, also known as the stomach bug, have been widely reported across the U.S. The highly contagious virus has also seen an uptick in South Carolina, according to the Centers for Disease Control and Prevention. Currently, there isn't a vaccine that can treat and prevent contraction.

The wildly contagious norovirus — marked by vomiting, diarrhea, and stomach pain — is beginning to spread in the U.S.