Norovirus Outbreak on Princess Cruise Ship Leaves 115 Passengers and Crew Sick
A norovirus outbreak has swept through a Princess Cruises vessel sailing the Southern Caribbean, leaving more than 115 passengers and crew ill — and prompting the CDC to go public with the news just as another major cruise ship health crisis continues to dominate headlines worldwide.
The Centers for Disease Control and Prevention officially reported the outbreak on May 7, confirming that the number of cases aboard Caribbean Princess had crossed its threshold for public notification. The ship, carrying 3,116 guests and 1,131 crew members, departed Fort Lauderdale, Florida on April 28 on a nearly two-week voyage through the Southern Caribbean, with scheduled stops in Aruba, Bonaire, Puerto Rico, the Bahamas, and other destinations. The sailing is due to conclude in Port Canaveral, Florida on May 11.
The Numbers
According to the CDC’s Vessel Sanitation Program, 102 passengers reported gastrointestinal symptoms during the voyage, representing approximately 3.3 percent of those on board. An additional 13 crew members also fell ill, accounting for 1.2 percent of the ship’s staff.
The CDC’s standard threshold for public notification is reached when at least 3 percent of passengers or crew display gastrointestinal symptoms — meaning this sailing cleared that bar on the passenger side.
The primary symptoms reported were vomiting and diarrhea, consistent with a typical norovirus presentation. For most healthy adults, norovirus resolves within one to three days without requiring medical treatment, though the illness carries greater risks for elderly passengers and those with underlying health conditions — demographics well represented aboard most Caribbean sailings.
How Princess Cruises Responded
Princess Cruises confirmed the outbreak and moved quickly to contain it. Every area of the ship was disinfected, with heightened sanitizing protocols added throughout the remainder of the voyage. Passengers and crew members displaying symptoms were isolated, and stool samples were collected for laboratory testing. The cruise line has also confirmed it is working directly with the CDC’s Vessel Sanitation Program throughout the situation.
When Caribbean Princess arrives in Port Canaveral on May 11, the ship will undergo a comprehensive deep-clean and full disinfection before any subsequent sailings depart. Despite the outbreak, the ship has continued its planned itinerary, including port calls at Amber Cove and Nassau.
In a statement, Princess described the situation as involving a limited number of individuals with mild gastrointestinal illness — language that drew some raised eyebrows given the CDC’s figures suggest more than one in thirty passengers reported being unwell.
A Second Princess Ship Affected in 2026
This is not the first time a Princess vessel has appeared on the CDC’s outbreak list this year. As recently as March 11, a norovirus outbreak aboard Star Princess sickened 153 people — a higher case count than the current Caribbean Princess situation. That makes two Princess Cruises ships flagged by the CDC for gastrointestinal outbreaks in 2026 alone.
Overall, Caribbean Princess marks the fourth cruise ship gastrointestinal outbreak reported by the CDC so far in 2026. While that may sound alarming, it represents a notably lower pace than recent years. The CDC logged 23 such outbreaks across the entire cruise industry in 2025, 18 of which were traced to norovirus. In 2024, the virus was responsible for 15 of 18 total reported outbreaks.
Keeping It in Perspective
Despite norovirus being almost synonymous with cruise ships in the public imagination, health experts are consistent in pointing out that cruise-related cases account for just 1 percent of all norovirus outbreaks reported to the CDC. The reason ships appear disproportionately in the headlines is not that they are uniquely dangerous environments — it is that outbreaks in close-contact settings like cruise ships, nursing homes, and daycare facilities are far more likely to be formally diagnosed, reported, and brought to public attention than community outbreaks that burn through a neighborhood quietly and go unrecorded.
The confined environment of a cruise ship, the shared dining spaces, and the mandatory reporting structure of the CDC’s Vessel Sanitation Program all combine to make cruise ship outbreaks both more visible and more thoroughly documented than almost any other setting.
Unfortunate Timing
The Caribbean Princess outbreak is arriving at a particularly sensitive moment for the cruise industry’s public image around health and safety. The separate and entirely unrelated hantavirus outbreak aboard the MV Hondius — an expedition vessel operated by Oceanwide Expeditions — has resulted in three deaths and triggered an international health response involving the WHO, multiple governments, and health authorities across several continents. Two American passengers who were aboard the Hondius are now under active health monitoring in Georgia.
The two outbreaks are completely unrelated in cause, transmission, and severity. Norovirus, while deeply unpleasant, is a common and manageable gastrointestinal illness. Hantavirus is a rare and potentially fatal respiratory virus with a very different transmission pathway. The timing, however, means that cruise ship health stories are receiving unusually high levels of public and media attention simultaneously.
For passengers currently at sea or with upcoming sailings booked, the best practical advice remains consistent: wash hands thoroughly and frequently, use hand sanitizer at every opportunity, and report any symptoms to the ship’s medical team early rather than waiting.
Caribbean Princess is expected in Port Canaveral on May 11, where her comprehensive post-voyage disinfection will take place before her next sailing begins.
