Americans from hantavirus-hit cruise ship being monitored for observation, U.S. officials say May 11, 2026 · Phil Helsel · nbcnews.com read more » The 18 Americans who were aboard the hantavirus-stricken cruise ship Hondius arrived back in the U.S. on Monday, and two of them are in biocontainment units in Omaha, Nebraska, and Atlanta Read more »