Andes Virus Outbreak Timeline

Chronological outbreak milestones grounded in official public-health publications.

Regional Timeline Pages

Patagonia Andes Virus Timeline - Chronology of the 2026 Patagonia-linked Andes virus cluster and cross-border response updates.
Chile Andes Virus Timeline - Country-focused timeline of Andes virus signals, surveillance milestones, and prevention messaging for Chile.
Argentina Andes Virus Timeline - Timeline of Argentina-linked Andes virus investigation signals and official-source prevention context.
South America Hantavirus Travel Timeline - Travel-intent timeline for Andes virus and hantavirus risk communication across South American destinations.

6 Apr 2026

WHO reported the first known illness in the cruise-linked cluster began with fever, headache, and gastrointestinal symptoms.

1 May 2026

A Dutch-flagged expedition vessel with passengers and crew from 23 nationalities became the focus of international investigation.

4 May 2026

WHO reported two confirmed and five suspected hantavirus cases, including three deaths, and ongoing laboratory investigation.

6 May 2026

WHO reiterated that Andes virus is the currently known hantavirus with documented limited human-to-human transmission among contacts.