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

Certain areas of the United States are seeing spikes in cases of norovirus, a highly contagious stomach bug, health experts said. The Centers for Disease Control and Prevention reported 91 outbreaks ...

Local health care facilities have advised residents to be on the lookout for patients presenting with norovirus symptoms such ...