Norovirus cases rise ahead of holiday season, CDC data shows

Friday, November 28, 2025 -As the holiday season approaches, norovirus infections are surging across the United States, according to recent CDC data. 

The highly contagious virus, often called the “stomach flu,” causes vomiting, diarrhea, and stomach cramps, and can spread rapidly in crowded environments such as schools, workplaces, and family gatherings.

Health officials are warning that the increase could put extra strain on hospitals and healthcare systems already dealing with seasonal illnesses. The CDC emphasizes frequent handwashing, disinfecting high-touch surfaces, and staying home when sick as the most effective ways to curb outbreaks.

With holiday travel and festivities underway, experts urge vigilance. Even brief exposure can lead to infection, making careful hygiene and early symptom recognition crucial. Officials stress that swift action now can help prevent the virus from turning routine celebrations into public health challenges.