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Norovirus

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U.S. Norovirus Activity Climbs Ahead of Winter as Test Positivity Nears 14%

Health officials urge soap-and-water handwashing to curb spread in schools, cruise ships, and other close-contact settings.

Wilson Middle School in Wyandotte Closes Wednesday Over Suspected Norovirus

Norovirus Cases Decline on Oceania Cruise as Portland Docking Proceeds

Royal Caribbean Ship Docks in Miami After Norovirus Sickens Nearly 100

CDC Confirms Norovirus on Royal Caribbean’s Serenade as Cruise Outbreaks in 2025 Surpass Last Year

CDC Investigates Gastrointestinal Illness Outbreak on Navigator of the Seas