Health authorities worldwide are tracking down passengers from a cruise ship after a hantavirus outbreak was confirmed on board. The United Nations health agency has verified at least five infection cases linked to the MV Hondius cruise ship, with approximately 12 countries now connected to the cluster. Hantavirus is a rare but potentially deadly virus typically spread through contact with infected rodents or their droppings. Health officials are urging anyone who traveled on the ship to seek medical attention immediately if they develop symptoms such as fever, muscle aches, or breathing difficulties. The outbreak has raised concerns globally as infected passengers may have already returned to their home countries. Authorities are working to contain the spread by identifying and monitoring all potential contacts. This incident highlights the importance of rapid response systems in preventing the international spread of infectious diseases.