Norovirus

Norovirus

10 Brote Activos

Norovirus is a highly contagious virus that causes acute gastroenteritis, inflammation of the stomach and intestines. Often called the 'stomach flu' or 'winter vomiting bug,' it is the leading cause of foodborne illness outbreaks worldwide.

3
Países Afectados
1,892
Casos Recientes (30 días)
10
Brotes Activos
28d ago
Última Actualización
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¿Qué es Norovirus?

Norovirus is the leading cause of vomiting and diarrhea from acute gastroenteritis in the United States and globally. It causes approximately 21 million illnesses, 70,000 hospitalizations, and 800 deaths annually in the U.S. alone. The virus is extremely contagious - just a few viral particles can cause infection, and infected people can shed billions of virus particles.

Síntomas

  • Sudden onset of nausea and vomiting
  • Watery diarrhea
  • Stomach cramps and abdominal pain
  • Low-grade fever
  • Body aches and headache
  • Fatigue and weakness

Transmisión

Norovirus spreads through contaminated food or water, contact with contaminated surfaces, and direct person-to-person contact. The virus is extremely contagious and only a few viral particles are needed to cause infection. Outbreaks are common in closed environments like cruise ships, schools, and nursing homes.

Período de Contagio: From symptom onset through at least 3 days after recovery (virus can be shed up to 2 weeks)

Prevención

  • Thorough handwashing with soap and water (alcohol sanitizers less effective)
  • Wash fruits and vegetables before eating
  • Cook shellfish thoroughly
  • Clean and disinfect contaminated surfaces with bleach-based cleaners
  • Stay home when sick and for 48 hours after symptoms resolve
  • Avoid preparing food for others when ill
  • Wash laundry thoroughly if contaminated

Live Norovirus Global Case Map

3 countries with reported activity. Updated from real-time surveillance data.

No reports
Low activity
High activity

United States — State Detail

1 state with reported activity. Click a state for detailed surveillance.

Brotes Activos y Casos Recientes

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Fuentes de datos: BEACON, ProMED, OMS, CDC y más de 50 agencias nacionales de salud

✓ Datos en vivo actualizados en tiempo real desde fuentes de salud globales

Norovirus Sickens Hundreds in Russia Water Supply Suspected

United States 2026-04-11
Activo

An acute intestinal infection outbreak in Murom has rapidly escalated to 375 cases over four days, with norovirus identified as the likely pathogen and waterborne transmission under investigation following suspected water infrastructure contamination. Authorities have mobilized comprehensive response measures including hepatitis A vaccination campaigns, water chlorination, and increased bottled water distribution, though the outbreak's trajectory depends on resolving potential ongoing water system breaches and controlling secondary person-to-person transmission.

Source: BEACON - View Full Report

Demand for cruises appears undimmed despite hantavirus and other onboard outbreaks

France, ÃŽle-de-France 2026-05-17
Activo

Recent outbreaks of hantavirus and norovirus on cruise ships are making headlines, but they're unlikely to dim the growing popularity of vacation cruises, according to industry representatives and travel experts.

In fact, many within the industry still expect a record number of people worldwide to take cruises this year despite three passengers aboard the MV Hondius dying from hantavirus after the ship stopped in Argentina and a recent norovirus outbreak aboard a British ship docked in Bordeaux,

📰 22 news sources reporting on this story.

🔗 Read more at Yakima Herald-Republic

Hantavirus vs Norovirus: Which Viral Infection Is Deadlier?

United States, Alaska 2026-05-14
Activo

Norovirus is a highly contagious virus

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Summary is AI-generated, newsroom-reviewed

  • A norovirus outbreak on Caribbean Princess sickened 102 passengers and 13 crew members

  • Norovirus causes gastroenteritis with symptoms like vomiting, diarrhea, and stomach cramps

  • Hantavirus is deadlier, causing severe lung and kidney issues with a 35%-50% fatality rate

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Switch To Beeps Mode

While different parts of the world contin

📰 11 news sources reporting on this story.

🔗 Read more at NDTV

Norovirus Hits French Ski Resort: 100 Adolescents Sick

France 2026-04-03
Activo

This event envelope contains reports on norovirus outbreaks in France.

Source: BEACON - View Full Report

What Is 'Vomiting Virus' Spreading Across US; Symptoms, Causes And Prevention, All You Need To Know

United States Minor Outlying Islands, Baker Island 2026-05-31
Activo

Norovirus cases are sharply rising acrossUS, CDC data and wastewater show massive spread, officials urge hygiene, handwashing and staying home to prevent dehydration and outbreaks

A highly contagious stomach virus commonly known as the "vomit bug" is spreading across the United States, with health officials reporting a sharp rise in norovirus activity in several regions of the country.

Norovirus is the leading cause of foodborne illness in the US and is responsible for millions of cases of acut

📰 11 news sources reporting on this story.

🔗 Read more at Mail Online

Shellfish recall issued over potential norovirus contamination

United States Minor Outlying Islands, Baker Island 2026-04-23
Activo

The FDA is asking restaurants and retailers to immediately stop serving and selling the product and throw them away.

The Food & Drug Administration (FDA) has issued a recall of some shellfish that were distributed in at least four states because of possible norovirus concerns.

The recall impacts shellfish from Gomez Shellfish, LLC that were harvested between March 22 and April 9 from Parts of Hammersley Inlet, WA.

What we know:

Restaurants and retailers from at least four states received ship

🔗 Read more at The Spokesman Review

Norovirus on cruise ships: Why soap and water still matter -- Dr Muhammad Amir Yunus

United States Minor Outlying Islands, Baker Island 2026-05-28
Activo

MAY 26 -- When news emerged of a norovirus outbreak aboard the Caribbean Princess cruise ship recently, many Malaysians may not have paid much attention to it. Stomach bugs during travel are often assumed to be routine food poisoning or a minor inconvenience that passes after a day or two.

But the outbreak, which affected more than 100 passengers and crew members, serves as a useful reminder that not all gastrointestinal infections behave the same way, and not all can be prevented using the habi

📰 11 news sources reporting on this story.

🔗 Read more at Malay Mail

Norovirus Hits Pacific Crest Trail Hikers: Information Sought

United States 2026-05-26
Activo

This event envelope contains reports on norovirus outbreaks in the USA.

Source: BEACON - View Full Report

Norovirus Outbreak Sickens 115 on Cruise Ship

United States Minor Outlying Islands, Baker Island 2026-05-09
Activo

More than 100 passengers and 13 crew members on the Caribbean Princess reported being ill, according to the Centers for Disease Control and Prevention.

More than 100 people have been sickened in a norovirus outbreak on a cruise ship operated by Princess Cruises, the U.S. Centers for Disease Control and Prevention announced on Thursday.

Those sickened, who include 102 passengers and 13 crew members, have been isolated from uninfected travelers, the agency said.

The norovirus, which is fairly co

📰 15 news sources reporting on this story.

🔗 Read more at Anadolu Ajansı

What Is Norovirus? Caribbean Princess Cruise Ship Outbreak Sparks Global Concern

United States, Alaska 2026-05-12
Activo
  • More than 100 fell ill during a norovirus outbreak on Caribbean Princess cruise ship

  • Norovirus causes acute gastroenteritis with vomiting, diarrhoea, and stomach cramps

  • Virus spreads rapidly in crowded places via contaminated food, water, and surfaces

Did our AI summary help?

Let us know.

Switch To Beeps Mode

More than 100 passengers and crew members reportedly fell ill during a recent norovirus outbreak aboard the Caribbean Princess cruise ship, according to health authorities monito

🔗 Read more at Irish Independent

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Recursos Expertos y Referencias

Información confiable de las principales organizaciones de salud

CDC

Orientación oficial de los Centros para el Control y la Prevención de Enfermedades de EE. UU.

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WHO

Vigilancia global de enfermedades y directrices de la Organización Mundial de la Salud

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Contenido Revisado Médicamente

La información sobre enfermedades en Virus Watcher es revisada por nuestro Epidemiólogo Jefe, ex analista principal del CDC para el pronóstico FluSight. Los datos de brotes se agregan de fuentes verificadas incluyendo BEACON, ProMED, OMS, CDC y más de 50 agencias nacionales de salud. Esta información es con fines educativos y no debe reemplazar el asesoramiento médico profesional.

Última revisión: 2026-06-29

Preguntas Frecuentes

Preguntas frecuentes sobre Norovirus respondidas por nuestro equipo de epidemiología

Enfermedades Relacionadas

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