This year has seen the worst stomach bug outbreaks on cruise ships in over a decade, with 2024 and 2012 tying for the highest number of outbreaks at 16 each. In December alone, the CDC reported five separate outbreaks on cruise ships that sickened more than 800 people, all of which were caused by the highly contagious norovirus. The increase in norovirus cases is being seen across the US, making it a significant issue for the cruise ship industry.
One of the most recent outbreaks occurred on the Queen Mary 2 ship belonging to Cunard cruise line, where nearly 400 people onboard have been sickened. This outbreak follows a previous one on the same ship during a voyage in December, indicating that the norovirus has likely remained onboard either through contaminated surfaces or infected crew members. The majority of the outbreaks on cruise ships in 2024 were caused by the norovirus, with only a couple caused by other bacteria and one with an unknown cause.
In response to the outbreaks, Cunard Line has implemented enhanced health protocols, including additional deep cleaning and close monitoring of ill passengers and crew members by onboard medical staff. Norovirus symptoms include diarrhea, vomiting, and stomach cramps, typically lasting between one to three days. However, the virus can still be contagious even after symptoms have disappeared, making it crucial to take preventative measures to avoid the spread of the bug.
The norovirus is easily spread through direct contact, consuming contaminated food or drinks, and touching contaminated surfaces. To prevent the spread of the virus, frequent and thorough hand washing is essential, as well as cleaning and disinfecting surfaces regularly. Cruise lines are required to follow specific CDC-approved guidelines for cleaning and disinfecting ships and must report any outbreaks affecting 3% or more of passengers and crew members to the agency.
Norovirus outbreaks are not limited to cruise ships, with an average of 2,500 reported outbreaks across the US each year. The norovirus is estimated to cost billions of dollars worldwide in healthcare costs and lost productivity annually, making it a significant public health concern. As cases continue to surge in various parts of the country, it is crucial for individuals to take necessary precautions to prevent the spread of the virus and protect themselves from getting sick.
