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What is norovirus that affected over 100 on cruise ship?
11 May 2026

More than 100 passengers and crew members reportedly fell ill during a recent norovirus outbreak aboard the Caribbean Princess cruise ship

The highly contagious virus, also known as the "winter vomiting bug," causes sudden vomiting, diarrhea, nausea, and stomach cramps.

The US Centers for Disease Control and Prevention (CDC) states that norovirus is a leading cause of acute gastroenteritis worldwide. It leads to millions of cases of vomiting and diarrhea annually.

Symptoms and global impact of norovirus
Virus details

Norovirus spreads quickly in crowded places like cruise ships, schools, hospitals, and nursing homes.

Symptoms usually appear 12-48 hours after exposure and include vomiting, diarrhea, nausea, stomach pain, and sometimes fever or body aches.

The virus is highly contagious with no specific cure; treatment focuses on managing symptoms and preventing dehydration.

Globally, it causes around 685 million cases of acute gastroenteritis each year, with an estimated economic burden of nearly $60 billion annually due to healthcare costs and lost productivity.

Emergency measures taken after outbreak on cruise ship
Outbreak response

The recent norovirus outbreak on the Caribbean Princess cruise ship has prompted emergency measures to control the spread of infection.

The cruise line increased cleaning and disinfection procedures under its outbreak prevention and response plan.

Passengers and crew members who fell ill were isolated to help reduce transmission onboard.

The CDC's Vessel Sanitation Program (VSP) was also consulted for sanitation protocols, outbreak management, and reporting procedures.

Norovirus outbreaks in India
India update

India has seen sporadic norovirus outbreaks in the past, with Kerala and Kolkata witnessing cases in recent years.

In 2023, 19 students tested positive for norovirus in Ernakulam district after a school outbreak. The incident led to shifting classes from Class 1 to 5 online as a precautionary measure.

In June 2022, two lower primary school students tested positive for norovirus in Thiruvananthapuram prompting increased monitoring and preventive measures by health authorities.