Following the confirmation of a lethal hantavirus outbreak associated with the MV Hondius cruise ship across various nations and the evacuation of Americans to biocontainment facilities, health authorities are providing updated advice for US travelers. The CDC has notably cautioned that the Andes strain of hantavirus — linked to this situation — has the potential for rare person-to-person transmission, raising its threat level compared to typical hantavirus variants. As of May 13th, three fatalities have been reported, along with eleven confirmed cases.