Major hantavirus outbreaks and milestones from 1993 to the present. Data sourced from CDC, WHO, ProMED, and peer-reviewed literature.
Four Corners Outbreak — USA
The first recognized HPS outbreak in the American Southwest. 48 confirmed cases with ~57% case fatality rate. Sin Nombre virus identified as causative agent. Deer mouse (Peromyscus maniculatus) established as primary reservoir.
Andes Virus Identified — South America
A distinct HPS-causing hantavirus, Andes virus, identified in Argentina and Chile. Critically, Andes virus is the only known hantavirus capable of human-to-human transmission, documented in cluster cases among close contacts.
South American Outbreak Wave
Series of HPS outbreaks in Patagonia (Argentina and Chile) caused by Andes virus. Outbreak linked to El Niño–driven increase in rodent populations following high vegetation productivity. Chile establishes national surveillance.
Panama Outbreak
Choclo hantavirus causes HPS outbreak in Panama. Three new hantavirus species identified in Central America. Surveillance gap exposed in the region between North and South American monitoring networks.
European HFRS Surge
Recurring epidemic years of Puumala virus (HFRS/nephropathia epidemica) in Finland, Sweden, and Germany, correlating with bank vole population peaks. Germany reports record HFRS cases in 2007 and 2010.
Yosemite Curry Village Outbreak — USA
Confirmed HPS cases among visitors staying in Signature Tent Cabins at Yosemite National Park. Nationwide health alert issued. Park conducted extensive rodent-proofing and cabin replacements. High-profile outbreak raised public awareness in the USA.
Chile Andes Virus Resurgence
Increased Andes hantavirus activity in southern Chile and Patagonian Argentina. Reports of person-to-person transmission clusters. Chilean health authorities issue travel advisories for Patagonia region.
German Puumala Record Season
Germany records one of its highest-ever HFRS case counts, concentrated in Baden-Württemberg and Bavaria. Linked to record bank vole populations following a mast year (high beech nut production). Over 2,800 cases reported.
Elevated Global Signals
Increased hantavirus reporting across multiple continents. Argentina, Germany, Russia, and China all show elevated signal counts. Monitoring networks identify potential correlation with post-COVID wildlife and rodent population changes.
Hondius Cruise Ship Outbreak
A hantavirus cluster linked to the expedition cruise ship Hondius triggers international alerts. Passengers from multiple countries — including the UK, Canada, and France — are monitored after potential exposure. Canada's chief public health officer issues a national update. Welsh health authorities monitor returning passengers. Signals spike across Europe and North America as media coverage intensifies.
Ongoing Global Surveillance
HantaData tracks real-time signals from 29 data sources across WHO, CDC, ProMED, Reuters, and global news feeds. Elevated signals across South America (Argentina, Chile), Europe (Germany, France), and Asia (China). The cruise ship outbreak drives record signal counts in May 2026.