• A total of 76 individuals reported symptoms of acute gastroenteritis during the two-week sailing from Japan to Hong Kong
• Hong Kong health officials established a temporary medical station at the terminal to assess passengers immediately upon docking
• Holland America implemented intensified deep cleaning and sanitation protocols to mitigate the spread of the suspected norovirus
• Regional health data indicates a general rise in norovirus activity across Japan and Korea during the early months of 2026

A suspected norovirus outbreak aboard Holland America’s Westerdam cruise ship resulted in 76 people falling ill during a recent 14-night voyage. The vessel departed from Yokohama, Japan, on February 15, carrying approximately 2,000 passengers and 800 crew members. By the time the ship reached its destination in Hong Kong on March 1, 65 guests and 11 crew members had reported symptoms consistent with acute gastroenteritis, including vomiting, diarrhea, and fever.

Upon the ship’s arrival at the Kai Tak Cruise Terminal, Hong Kong’s Centre for Health Protection (CHP) initiated a formal investigation. Health officials boarded the vessel to conduct epidemiological assessments and inspect the ship’s hygiene conditions. To manage the situation effectively, a temporary medical station was established at the terminal to evaluate the health of arriving passengers. Dr. Edwin Tsui, controller of the CHP, noted that the region, specifically Japan and Korea, has seen a recent increase in norovirus activity, which may have contributed to the cases on board.

Holland America reported that the illnesses were mostly mild and resolved quickly for those affected. In alignment with standard safety protocols, the cruise line implemented enhanced sanitation procedures during the journey and conducted a comprehensive deep cleaning once the voyage concluded in Hong Kong. These measures were designed to prevent further transmission and ensure the safety of future passengers. While the number of cases represented a small fraction of the total people on board, the coordination between the cruise line and international health agencies highlights the rigorous monitoring systems in place for maritime health.