On February 15, 2026, a Holland America Line cruise, the Westerdam, embarked on a journey from Yokohama, Japan, to Hong Kong. During this trip, which included stops in Busan, Korea, and Shanghai, approximately 76 out of 2,800 passengers reported symptoms consistent with a norovirus outbreak, including vomiting, diarrhea, and fever. The Centre for Health Protection (CHP) in Hong Kong was notified on February 27 and initiated an investigation as a response to the reported illnesses among passengers and crew members. Norovirus, known for causing acute gastroenteritis, is highly contagious and can lead to severe gastrointestinal distress. Following the onset of symptoms among the passengers, the CHP established a temporary medical station at the Kai Tak Cruise Terminal to conduct health assessments upon the ship's arrival in Hong Kong. The health authority also advised the implementation of thorough cleaning and disinfection measures as a precaution before allowing passengers and crew to reboard the vessel. CHP controller, Dr. Edwin Tsui, highlighted the elevated activity levels of norovirus in various tourist regions, especially Japan and Korea, where outbreaks had been increasing since late the previous year. Holland America Line, responding to the outbreak, communicated that most cases were mild and resolved quickly. They stressed their commitment to health and safety by instituting enhanced sanitation procedures on board. These measures included additional deep cleaning of the ship after it concluded its itinerary in Hong Kong. The cruise line is actively collaborating with health authorities to ensure the well-being of passengers and crew. Despite the rapid resolution of most cases, the incident raised concerns about public health during cruise vacations, especially in light of the rising cases of norovirus in neighboring countries. The CHP’s emphasis on personal hygiene and sanitation was a call to action for both cruise operators and passengers to exercise diligence in maintaining health standards, thereby mitigating the risk of outbreaks in the future.