The number of norovirus cases is increasing across the US, but there are ways to reduce your chances of infection and stave off dehydration and other symptoms.

A newer strain of norovirus, called GII.17[P17] makes up the majority of outbreaks nationwide, according to CDC data.The previously uncommon strain may offer an explanation for the rise in norovirus infections over the past month.

Norovirus tends to come on hard and fast. “Nausea and or vomiting are usually the first symptoms of norovirus,” says infectious disease expert Amesh A. Adalja, MD, a senior scholar at the Johns Hopkins Center for Health Security.

Norovirus can survive quite well on surfaces, bathroom fixtures, countertops, doorknobs and any other items commonly touched. Many typical household cleaners cannot kill the virus or eradicate it from those surfaces. The best solution is to clean such areas with appropriately diluted bleach.

Norovirus is known to cause some pretty nasty symptoms, but there are steps you can take to stay healthy and things you can do to feel better if you do get sick. Here’s what to

A surge in norovirus cases might be explained by a new strain of the virus, which now reportedly makes up a majority of outbreaks across the U.S. This winter’s dominant norovirus strain is a newer variant called the G11.

Norovirus, aka the stomach flu, is surging across the United States as 2025 begins. Here's what to know about norovirus symptoms, how it spreads, and prevention.