Summary

Norovirus cases are surging in the U.S., with 91 outbreaks reported in early December, up from 69 the previous week, according to the CDC.

Norovirus, the leading cause of foodborne illness, spreads easily through contaminated food, water, surfaces, or direct contact.

Symptoms include vomiting, diarrhea, and stomach pain, with most cases resolving in 1-3 days, though it causes 900 deaths and 100,000 hospitalizations annually, mostly among the elderly and young children.

Frequent handwashing and disinfecting surfaces are essential to prevent infection during its peak season from November to April.