Guidelines for Cruise Passengers to Prevent Norovirus Infections

As the upcoming cruise season approaches, travelers should be aware of the increased risk of norovirus outbreaks, especially with recent reductions in inspection efforts. Norovirus is highly contagious and can cause severe gastrointestinal symptoms such as vomiting, diarrhea, and stomach pain, often lasting for several days. Although the overall risk on cruise ships remains low, the emergence of a new strain, GII.17, has led to a surge in reported outbreaks across the United States.

Recent government budget cuts have impacted the Vessel Sanitation Program managed by the CDC, leading to fewer inspections and investigations. Despite this, cruise lines continue to follow sanitation protocols, but the reduced oversight raises concerns about the potential for outbreaks.

Most norovirus infections on cruises result from contaminated food, surfaces, or contact with infected individuals. The CDC reports that less than 1% of annual norovirus cases are linked to cruises, but these can cause significant discomfort for affected passengers.

The new GII.17 strain has circulated at low levels for years but caused a spike in cases this winter, responsible for nearly 80% of over 2,400 reported outbreaks from August to April. Since most individuals lack immunity against this strain, it can spread rapidly, particularly in crowded conditions.

To minimize risk, passengers are advised to practice strict hygiene measures. Frequent handwashing with soap and water for at least 20 seconds is the most effective way to prevent infection, as hand sanitizers are less effective against norovirus. Avoiding contact with vomit, covering your mouth when coughing or sneezing, and cleaning your hands after bathroom use are crucial.

If feeling unwell, travelers should report symptoms promptly and isolate themselves to prevent spreading the virus. Although cruise companies have extensive sanitation measures, the recent cutbacks in inspection programs may impact overall safety.

Overall, staying vigilant and adhering to good hygiene practices can significantly reduce the risk of norovirus infection during your cruise adventures. For further information, visit source: https://medicalxpress.com/news/2025-05-cruise-ship-passengers-stay-safe.html