FDA CDC News
Norovirus Cases Continue Spreading Across the U.S. as Health Officials Monitor Outbreaks
Health officials across the United States are monitoring rising norovirus outbreaks linked to schools, cruise ships, healthcare facilities, and contaminated food sources as cases continue spreading nationwide.
Last Updated on May 30, 2026 by Rod Washington
Health officials across the United States are continuing to monitor widespread norovirus activity as outbreaks have been reported in schools, healthcare facilities, cruise ships, restaurants, and community settings nationwide.
Norovirus Outbreaks
According to the Centers for Disease Control and Prevention (CDC), more than 1,190 norovirus outbreaks were reported by participating states between August 2025 and early May 2026. The CDC says the virus remains active in several regions, particularly in the Northeast and Midwest, while cases continue appearing in parts of California and other western states.
Norovirus, often called the “stomach flu” or “winter vomiting bug,” is one of the leading causes of acute gastroenteritis in the United States. The virus spreads rapidly through contaminated food, water, surfaces, and close contact with infected individuals.
Recent outbreaks aboard cruise ships have also gained national attention. The CDC’s Vessel Sanitation Program has tracked multiple gastrointestinal illness outbreaks this year, including incidents involving large numbers of passengers and crew members becoming ill during voyages.
Health experts say symptoms typically appear within 12 to 48 hours after exposure and commonly include:
- Vomiting
- Diarrhea
- Stomach cramps
- Nausea
- Fever and body aches
Most people recover within one to three days, but dehydration can become serious, especially for children, older adults, and individuals with weakened immune systems.
Officials continue emphasizing prevention measures as the best defense against infection. Recommended precautions include washing hands thoroughly with soap and water, disinfecting contaminated surfaces with bleach-based cleaners, properly washing produce, and avoiding food preparation while sick.
Medical experts also note that alcohol-based hand sanitizers are generally less effective against norovirus than traditional handwashing.
While current activity has raised concerns due to the number of outbreaks being reported nationwide, health agencies say norovirus outbreaks remain a seasonal and recurring public health issue rather than a pandemic-level event.
The CDC continues tracking outbreak trends through its NoroSTAT and CaliciNet surveillance systems as health departments nationwide monitor additional cases heading into the summer travel season.
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Sources: CDC Norovirus Updates | CDC NoroSTAT Data Dashboard | CDC Cruise Ship Outbreak Reports
(CDC)
