The norovirus, aka the "stomach flu," is continuing to circulate, causing more cases in the U.S. Here's what to know about symptoms, transmission and treatment.

While we're in the midst of the most severe flu season of the past 15 years, the U.S. is also seeing increased rates of norovirus. The situation with both illnesses isn't great right now, Dr ...

Norovirus infections jumped a stomach-turning 159% last month compared to the same span last year in NYC, where flu cases are up nearly 25% so far in 2025, city Department of Health data reveal.

A new large-scale study led by researchers from Queen’s University Belfast has shown that combined wastewater testing and ...