They are taking them to Nebraska.
https://www.cnn.com/2026/05/10/us/hantavirus-cruise-passengers-nebraska-facility
One of America's most state-of-the-art quarantine centers is preparing to take in the U.S. passengers who were aboard the M/V Hondius cruise ship at the center of a hantavirus outbreak.
Administrators of the National Quarantine Unit in Omaha, Nebraska, say they are ready to help the 17 American passengers stay safe. During a press briefing Friday, the officials likened the quarantine to a hotel stay and said there is not yet a defined period for how long the passengers would remain at the unit.
https://abcnews.com/Health/nebraskas-national-quarantine-unit-prepares-bring-hantavirus-cruise/story?id=132794162