Highly contagious norovirus spreading rapidly in CT: What to know

Patch – Monday, December 8, 2025
By Rich Kirby

A nasty, highly contagious form of norovirus called “winter vomiting disease” is spreading across the country, including in Connecticut, according to an analysis of wastewater at a surveillance site in the state.

Norovirus cases typically spike after Christmas and New Year’s gatherings, but the number of new cases in November showed a notable increase, according to Centers for Disease Control and Prevention data.

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