Hantavirus isn’t very contagious, but it can spread from human to human
Summary
Hantavirus can spread from one person to another, but it is not very contagious. The strain found on the MV Hondius cruise ship in May 2026 is different from the strain in Colorado, which does not spread between people.Key Facts
- Three passengers on the MV Hondius died from hantavirus in May 2026.
- The virus on the MV Hondius can be spread between humans, though it is not easily passed on.
- Some social media posts wrongly claimed hantavirus cannot spread from person to person.
- The claims came from an old fact sheet likely about a different hantavirus strain found in Colorado.
- The Colorado strain, called Sin Nombre virus, is not contagious between people.
- The Andes hantavirus strain on the cruise ship is different and can be transmitted human to human.
- Health authorities quarantined and monitored those exposed on the cruise ship to prevent further spread.
- The San Juan Basin Health Department, source of the fact sheet, closed in 2024 and no longer operates.
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