Advisory Board December 8, 2025
Norovirus, a virus that causes vomiting and diarrhea, is surging in the United States, with cases doubling over the past few months, but experts say there are steps you can take to reduce your risk of getting infected.
Norovirus cases surge across US
Norovirus is the leading cause of vomiting and diarrhea from acute gastroenteritis in the United States, according to CDC, and is the top source of foodborne illness in the country, responsible for almost 60% of all cases.
Every year, there are around 2,500 norovirus outbreaks nationwide, which is defined by CDC as when two or more similar illnesses come from a common exposure that is either “suspected or laboratory-confirmed to be caused by norovirus.”
Each year, norovirus...
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