Norovirus, a stomach bug that causes vomiting and diarrhea, is surging again after a harsh season last winter. Here's what to ...

From Aug. 1 through Nov. 13, 153 outbreaks of norovirus were reported in 14 states, according to the U.S. Centers for Disease ...

Medically reviewed by Anju Goel, MD Key Takeaways Diarrhea is often contagious, especially when it's caused by viruses, ...

"There are some signs that another big norovirus season is ahead of us," Emory University Professor Ben Lopman told Newsweek.