The Centers for Disease Control and Prevention (CDC) reported a surge in stomach illnesses on cruise ships in 2024, with 16 outbreaks affecting 1,894 passengers and 245 crew members. This marks the highest number of outbreaks since 2012, when there were also 16 cases but no reported illnesses.
A significant increase in norovirus-related illnesses was observed, with five outbreaks occurring in December alone. These caused 781 passengers to fall ill, primarily experiencing diarrhea and vomiting. Norovirus accounted for 14 out of the 16 outbreaks, while E. coli and salmonella caused the remaining two.
The CDC notes that norovirus cases typically peak between November and April, but can occur at any time. The virus is highly contagious and thrives in crowded, semi-enclosed spaces often found on cruise ships. With an average of 19 million to 21 million illnesses per year, norovirus remains a significant public health concern.
The COVID-19 pandemic led to a decline in cruise ship illnesses due to increased cleaning protocols and limited capacity. However, the industry’s restart with reduced capacities has seen a resurgence of stomach bugs on board.
Source: https://thehill.com/policy/5061889-cruise-ship-stomach-illnesses-12-year-high-cdc