In May 2026, 41 people nationwide were being monitored for hantavirus after a cruise ship outbreak left three passengers dead aboard the MV Hondius. The Colorado death that surfaced in the same days is not one of them.
Colorado’s public health department (CDPHE) reported that an adult in Douglas County died from hantavirus. The agency pointed to local exposure to rodents, not to the ship. Its statement of May 18, obtained by Reuters, added that the strain behind the death turns up regularly in Colorado at this time of year. How the person was exposed is still under investigation.
The bottom line is that two separate stories are running side by side.
Two different viruses
The Colorado case involves the Sin Nombre hantavirus. It does not pass from person to person. The Andes strain aboard the Hondius can, but only with prolonged, close contact. The state health department put it plainly: “The risk to the general public remains low.”
The liner held about 150 people, passengers and crew, drawn from 23 countries. Severe respiratory illness among those on board reached the WHO on May 2. Reuters, citing the agency, tallied eight confirmed cases and two probable ones, the three deaths among them.
How common is this?
Hantavirus is rare in the U.S. CDC figures cited by USA Today show 26 cases in 2023, 13 in 2022 and 16 in 2021, so roughly one to two dozen a year. Federal tracking started in 1993, following a cluster of cases in the Four Corners region. Through the end of 2023 the count stood at 890 cases. Colorado accounts for 121 of them and New Mexico for 129, the highest cumulative counts of any state.
Deer mice and white-footed mice are the main carriers. People usually get infected by breathing in microscopic particles from rodent urine, droppings or saliva. Symptoms tend to appear one to eight weeks after a person meets an infected rodent, the CDC says.
The Douglas County death stands apart from the ship in cause, strain and place. Its one link to the Hondius story is the calendar.
Sources
- Hantavirus death in Colorado, not linked to cruise ship outbreak (USA TODAY)
- Colorado reports adult death linked to hantavirus (Fox)
