The number of national norovirus outbreaks was the highest seen in December since at least 2012. Experts suggest increased hand-washing to avoid catching the ultra-contagious stomach bug.

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.

The common virus spreads easily and quickly through contaminated food and water. Cases often surge around the holidays as people gather with family and friends.

The Centers for Disease Control and Prevention has previously signaled that influenza A, COVID and RSV are on the rise across the U.S. Now, the risk of catching norovirus — more commonly known as the stomach flu — is escalating,

On the week of Dec. 5, the CDC reported 91 cases of the virus ― over double the highest number recorded between 2021 and 2024.

If COVID-19 taught us anything it's that washing your hands is often the best thing to do to prevent the spread of infections, including norovirus.

Here's what you need to know about norovirus, or the stomach flu. According to the CDC, "norovirus is a very contagious virus" that causes acute gastroenteritis, an inflammation of the stomach or intestines and leads to vomiting and diarrhea.

UHS Wilson Medical Center was recently on a diversion due to high patient volume. Broome County Health Department called it "the perfect storm."