The latest government data shows that cases of a fast-spreading stomach bug are surging in parts of the United States. The most recent numbers from the U.S.

Norovirus is the leading cause of foodborne illness in the United States, responsible for 58% of such infections acquired in the country each year, according to the CDC. Norovirus infections are caused by a group of viruses that spread easily, with as few ...

The week of December 5 saw 91 reported outbreaks, a rise from 69 outbreaks reported the previous week. The CDC publishes data about the disease going back to 2012. It shows that this month's outbreak has exceeded the previous December maximum of 65 outbreaks.