Health ❯ Infectious Diseases

Norovirus

Symptoms Outbreaks Cruise Ship Outbreaks Transmission Public Health Epidemiology Treatment Gastroenteritis Contagious Period Statistics

Norovirus Activity Rises Early, With Wastewater Spikes in Michigan and Los Angeles County

Soap-and-water handwashing remains the primary defense against a virus that resists many sanitizers.

Norovirus Activity Climbs Early Across U.S. as UK Reports Smaller Rise

Norovirus Is Surging Early Across the U.S. as Wastewater Signals Climb

CDC Confirms Norovirus Outbreak on AIDAdiva, Marking 21st Cruise Outbreak of 2025

H3N2 ‘K’ Flu Surges as Central Florida Warns of Tridemic Risk for Disney Travelers

CDC Confirms Norovirus Outbreak on AIDAdiva World Cruise With Over 100 Sick

Norovirus Activity Rises Early Across U.S., Wastewater and CDC Tests Point Up

Norovirus Activity Rises Early in the U.S., With Test Positivity Doubling to About 14%

Norovirus Is Climbing in the U.S. as UK Hospitals Tell Recent Patients to Stay Away

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

UKHSA Issues Seasonal Norovirus Alert With 48-Hour Illness Guidance

Kaliningrad Cafe Shut for 90 Days After Norovirus Outbreak Sickens 14 Students

Norovirus Cases Decline on Oceania Cruise as Portland Docking Proceeds

UKHSA Reissues Norovirus Stay-Home Advice as Cases Tick Up

Norovirus Outbreak at Kaliningrad Cafe Sickens 13 Children as Case Moves to Oct. 24 Hearing

Royal Caribbean Ship Reaches Miami After Norovirus Sickens Nearly 100

Royal Caribbean Ship Docks in Miami After Norovirus Sickens Nearly 100

UKHSA Renews Norovirus Alert With 48-Hour Stay-Home Guidance

Norovirus Sickens 200 Passengers on MS Artania

UKHSA Urges 48-Hour Home Isolation as Spring Norovirus Cases Double Average