In New York City alone, there were nearly 1,300 cases in December. That's almost triple the number during same time in 2023.

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.

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.

How long does norovirus last? People who fall ill with norovirus typically recover within one to three days, per the CDC. However, the individual can still spread the virus for a

What should you do to protect yourself from the norovirus?

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.