Outbreak Tracker / Live
Active monitoring of hantavirus cases worldwide, including the cruise ship outbreak, Andes virus developments, and cases reported in the US, UK, France, and India.
May 2026
Health authorities are investigating hantavirus cases among passengers of the MV Hondius expedition cruise ship. The WHO has been notified and is coordinating with regional agencies. Hantavirus on a cruise ship is rare but confined ventilation systems amplify exposure when rodent contamination is present.
May 2026
Argentina and Chile confirmed new Andes hantavirus cases. The Andes virus remains the only hantavirus strain with documented person-to-person transmission, making it a unique concern among hantavirus types.
April 2026
The World Health Organization revised its hantavirus risk assessment following the cruise ship investigation and increased European reports. Surveillance has been enhanced in the UK, France, and India where public concern is rising.
April 2026
The US continues to report 30 to 40 HPS cases annually. The UK and France have seen increased awareness and testing following cruise ship news, though confirmed cases remain rare in Western Europe. India is monitoring for Seoul virus, carried by urban rats.
March 2026
Finland and Germany reported higher-than-average hantavirus cases for Q1 2026, consistent with cyclical rodent population peaks. France has increased surveillance in rural regions.
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