Updated on: May 7, 2026 / 1:31 PM EDT / CBS News

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The effort to monitor the spread of hantavirus from a cruise ship currently off the west coast of Africa is expanding, including in the United States, after health officials confirmed the virus on the ship is the rare strain that is transmissible from human to human.

At least 12 countries are currently monitoring people who had disembarked the MV Hondius before cases of hantavirus were confirmed, the World Health Organization said at a press conference Thursday. Those countries are Canada, Denmark, Germany, the Netherlands, New Zealand, Saint Kitts and Nevis, Singapore, Sweden, Switzerland, Turkey, the United Kingdom and the United States.

Five U.S.…