A recent hantavirus outbreak aboard a cruise ship has drawn renewed attention to the risks of infectious disease transmission at sea. At least eight cases have been reported so far on the Dutch-flagged MV Hondius, including three deaths, according to a Thursday briefing from the World Health Organization (WHO), with five cases confirmed as hantavirus and three considered suspected. The vessel, which departed from Ushuaia, Argentina, is currently en route to the Canary Islands, with over 100