Hantavirus cluster linked to cruise ship travel, Multi-country was recorded by Global Incident Tracker on Monday, 4 May 2026 at 21:48 UTC. The event is classified as a epidemic incident with a severity rating of Severe, and was detected through the World Health Organization (WHO).
On 2 May 2026, a cluster of passengers with severe respiratory illness aboard a cruise ship was reported to the World Health Organization. The ship is carrying 147 passengers and crew. As of 4 May 2026, seven cases (two laboratory confirmed cases of hantavirus and five suspected cases) have been identified, including three deaths, one critically ill patient and three individuals reporting mild symptoms. Illness onset occurred between 6 and 28 April 2026 and was characterized by fever, gastrointestinal symptoms, rapid progression to pneumonia, acute respiratory distress syndrome and shock. Further investigations are ongoing. The outbreak is being managed through coordinated international response, and includes in-depth investigations, case isolation and care, medical evacuation and laboratory investigations. Human hantavirus infection is primarily acquired through contact with the ur
Understanding epidemic events
Disease outbreaks including cholera, dengue, measles, Ebola and influenza. Outbreak trajectories depend on transmission route, population immunity and the speed of detection. Early case-finding, clean water and vaccination coverage change outcomes far more than late-stage restrictions.
How severity is rated
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Data and verification
This record was generated automatically from the World Health Organization (WHO) and de-duplicated against our archive. Early reports for any incident can be revised: locations get refined, magnitudes are recalculated and impact figures change as assessments arrive. We deliberately do not publish casualty numbers unless an official source states them. The original source report is linked at the top of this page.
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Timeline and sources
Officially recorded
An official record exists from World Health Organization. That confirms the event was recorded; figures quoted from news reports are not confirmed by it.
How statuses are decided · the number of reports is never treated as confirmation.
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· received · event time 4 May 2026, 21:48 UTCFirst report Humanitarian agency report
First recorded from World Health Organization.
Times are when this site received each report, in UTC; the event time is shown where the source gave one. Copies of one syndicated story count as one report.