The stomach flu—also known as norovirus—is on the rise both nationally and around the world. And while local health officials say there’s no data showing a concerning increase here at home, they’re still urging the public to take precautions. So, here’s what you should know—and how to stay safe.

Norovirus is a highly contagious virus that spreads through direct contact with an infected person, by consuming contaminated food or drinks, or by touching contaminated surfaces. Symptoms usually appear 12 to 48 hours after exposure and can include diarrhea, vomiting, nausea, and stomach pain. 

Anyone can get norovirus, and most people recover within one to three days. However, young children under five, older adults, and those with weakened immune systems are at higher risk for more severe symptoms.

To reduce your risk of exposure, health officials recommend washing your hands thoroughly with soap and water, cooking shellfish completely, and cleaning and disinfecting contaminated surfaces.

And if you’re feeling sick, stay home—and remain home for at least two days after symptoms have stopped.

For more information, visit www.cdc.gov/norovirus.