More than 80 people have become ill with norovirus aboard the Crown Princess, not pictured, which is sailing to ports in California. (John Raoux/The Associated Press) ...

There have been at least 25 outbreaks of norovirus since Feb. 1, probably adding up to hundreds of cases statewide, according to a recent advisory from the California Department of Public Health.

Eleven members of the planning team for the California delegation to the Republican convention were recovering Tuesday from a bout of norovirus, or what's commonly known as stomach flu, health ...

“California is buzzing with norovirus right now,” Chin-Hong said. However, he said, many people sickened by the norovirus may not get tested for it because that test isn’t commonly administered.

The California Public Health Department recently detected “elevated wastewater levels of norovirus” in wastewater. That’s based on data collected by WastewaterSCAN, a Stanford University ...

The U.S. is having one of its worst norovirus seasons in recent memory for reasons that are not well known. The number of outbreaks in the 2024-2025 season so far surpasses the typical range from ...

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 ...

As of Dec. 12, 57 confirmed and probable cases of norovirus have been reported among people who ate raw oysters from British Columbia while dining at several restaurants in California.

Norovirus is the leading cause of foodborne disease outbreaks. Outbreaks of norovirus can be difficult to contain given the small inoculum required for transmission and its environmental stability.

When you’re infected with norovirus, symptoms may start as soon as 12 hours after exposure. Most people feel better within 2 to 3 days. If you think you have norovirus, contact your health care ...

Although the number of norovirus outbreaks was slightly higher across the nation based on more than a dozen states participating in NoroSTAT, California’s total number is less than last year so fae.