Norovirus is raging in the United States this winter. According to the latest data from the Centers for Disease Control and Prevention, there were 91 outbreaks reported by state health departments the week of Dec. 5, the most cases seen at this time of year since 2012.

Norovirus, often called the stomach flu or stomach bug, is a highly contagious virus causing vomiting and diarrhea

There were 91 outbreaks reported during a week in December — more than double what was seen in previous years, the CDC says.

The CDC said there were 91 outbreaks of norovirus reported during the week of Dec. 5 alone.

CDC data shows a sharp increase in norovirus cases. Here's what you need to know to avoid the stomach flu in Mississippi to keep your family healthy.

Norovirus cases are surging across the country this winter, according to Centers for Disease Control and Prevention (CDC) data. There were 91 outbreaks reported by state health departments during the week of Dec.

Norovirus outbreak in parts of US is concerning. It leads to nausea and vomiting. Here's how you can stay safe.