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Three passengers have died and five others are confirmed or suspected infected with the Andes strain of hantavirus aboard the Dutch expedition cruise ship MV Hondius, which departed Argentina on April 1, 2026. Health authorities in at least a dozen countries are now racing to locate and monitor approximately 30–40 passengers who disembarked before the outbreak was confirmed, while the remaining 149 people aboard sit anchored off Cape Verde with no port willing to accept them.