Sanitation Inspections: Lowest-Scoring Cruise Ships Of 2026 Revealed

Norwegian Dawn has recorded the lowest CDC sanitation score among cruise ships inspected so far in 2026, falling below the agency’s passing standard during an unannounced inspection in March.

The Norwegian Cruise Line ship received a score of 84 during its inspection on 29th March 2026. Under the US Centers for Disease Control and Prevention’s Vessel Sanitation Program, a score of 86 or above is considered satisfactory, while 85 or below is classed as unsatisfactory.

Norwegian Dawn was the only ship among the seven lowest-scoring vessels highlighted in the latest review to fall below the passing threshold.

Carnival Breeze, Kydon and National Geographic Sea Lion each scored 86, meaning they passed by the narrowest possible margin. Sun Princess, MSC Meraviglia and Amadea each received scores of 89.

According to current CDC records, Carnival Breeze’s 86 was recorded on 14th May, Kydon’s on 30th March and National Geographic Sea Lion’s on 21st June. Sun Princess was inspected on 15th February, MSC Meraviglia on 10th March and Amadea on 10th February.

The inspection scores reflect conditions found on board at a particular point in time and can vary significantly between inspections.

Carnival Breeze is a notable example. The Carnival Cruise Line ship earned a perfect score of 100 during an earlier inspection before receiving its subsequent score of 86.

What CDC Inspectors Look For On Cruise Ships

The CDC conducts inspections through its Vessel Sanitation Program, which is designed to help prevent and control public health problems aboard cruise ships operating within the programme’s jurisdiction.

Inspections assess whether ships are complying with public health standards across numerous areas of their operation. These include medical facilities, drinking water systems, swimming pools and whirlpools, food preparation areas, dining rooms, children’s facilities, accommodation, ventilation and public spaces.

A lower inspection result does not automatically mean passengers on a ship are unsafe or that an illness outbreak is occurring. Instead, the score represents inspectors’ assessment of the ship against the CDC’s sanitation standards at the time they boarded.

Norwegian Cruise Line subsequently submitted a corrective action report to the CDC detailing measures taken following Norwegian Dawn’s failed inspection.

Gavin Macgregor-Skinner, an infection prevention expert and epidemiologist affiliated with Penn State College of Medicine, has previously stressed the importance of the Vessel Sanitation Program.

“The federal government’s Vessel Sanitation Program, established in 1975 to work with the cruise industry to protect travelers’ health, is critical for the health and safety of passengers, staff and the locations that cruise ships visit,” Macgregor-Skinner said.

He added:

“Ships participating in the VSP can expect two unannounced inspections every year, with a focus on medical facilities, potable water systems, swimming pools and whirlpool baths, galleys and dining rooms, child activity centers, cabins, ventilation systems and common areas,”

The Vessel Sanitation Program dates back to 1975 and was established after gastrointestinal illness outbreaks aboard cruise ships became a significant public health concern. Today, the programme combines inspections with illness surveillance and responses to outbreaks on ships entering the United States from foreign ports.

The nature of cruise ships means preventing the spread of illness remains a significant operational priority. Thousands of passengers and crew can share dining areas, entertainment venues, lifts, handrails and other communal facilities during a voyage.

Brian Sansoni, senior vice president of communications at the American Cleaning Institute, previously said:

“Without strong cleaning and hygiene practices, germs can spread quickly, increasing the risk of illness among passengers and crew,” he added.

Macgregor-Skinner has also cautioned against assuming that the greater availability of cruise ship health information means illnesses are inherently more common at sea.

“It is very important not to confuse the wider availability of cruise health data with a higher incidence rate on cruise ships compared to settings like restaurants, hotels and planes,” he said.

Cruise ships operating within the CDC programme are subject to specific reporting requirements for gastrointestinal illnesses, giving federal authorities considerably more visibility of cases occurring at sea.

Several Cruise Ship Illness Outbreaks Reported In 2026

Sanitation inspection results and illness outbreaks are separate measures, and a ship receiving a low inspection score does not necessarily go on to experience an outbreak.

The CDC separately publishes gastrointestinal illness outbreaks when ships within its jurisdiction meet its reporting criteria. Generally, an outbreak is published when at least 3% of passengers or crew report gastrointestinal illness symptoms to the ship’s medical team during a voyage, although the agency can also publish other incidents considered significant to public health.

As of the CDC’s latest published 2026 outbreak data, affected vessels have included Ruby Princess, Caribbean Princess, Star Princess, Oceania Cruises’ Insignia, Regent Seven Seas Cruises’ Seven Seas Mariner and Lindblad Expeditions’ National Geographic Sea Bird.

Norovirus was identified in several of those outbreaks, including cases aboard Ruby Princess, Caribbean Princess, Star Princess and National Geographic Sea Bird. Other incidents involved E. coli, while the cause of some National Geographic Sea Bird outbreaks had not been identified in the CDC’s published data.

The vessels appearing on the outbreak list are not the same as the ships with the lowest sanitation scores, reinforcing the distinction between an environmental health inspection and an outbreak investigation.

At the opposite end of the inspection rankings, dozens of ships have achieved perfect results during 2026.

Ships receiving scores of 100 have included Royal Caribbean’s Icon of the Seas, Carnival Celebration, Celebrity Apex, Disney Dream, Norwegian Viva and Cunard’s Queen Elizabeth.

The CDC’s current Green Sheet, which shows the most recent inspection result for vessels within its jurisdiction, confirms perfect scores for those ships, alongside numerous other vessels that have achieved the maximum result.

With scores capable of changing considerably from one inspection to the next, the results provide a snapshot of sanitation conditions aboard a ship rather than a permanent rating of the vessel or cruise line.