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

Norovirus is the country's leading cause of vomiting, diarrhea, and foodborne illness, and right on schedule, it's picking up ...

Norovirus is on the rise overall in the United States, federal officials say, even as the West sees a slight dip in reported cases. After peaking in January, cases of the virus were steadily dropping ...

Health officials are warning the public that cases of norovirus, also known as the “winter vomiting disease,” have been spiking across Southern California ahead of the winter season.

Norovirus, also known as the “stomach flu” or “winter vomiting sickness,” is active in California and across the nation. But cleaning and disinfecting can help check its spread, experts say.

CALIFORNIA — Norovirus is quickly spreading, exceeding past seasonal averages for outbreaks of the wretched stomach bug that sickens millions of people every year. Norovirus outbreaks spiked to 91 for ...

A nasty stomach bug has been spreading across the country, including California, in recent months — leaving people feeling nauseous, achy or worse. There were 91 outbreaks of norovirus reported across ...

The 'AIDAdiva' arrives in Santa Barbara on Thursday following a norovirus outbreak aboard the ship earlier this month.

This transmission electron micrograph (TEM) revealed some of the ultrastructural morphology displayed by norovirus virions, or virus particles. Charles D. Humphrey Centers for Disease Control ...