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Real-time world map tracking the 2026 Hantavirus outbreak. The cluster originated aboard the Dutch-flagged cruise ship MV Hondius (Andes hantavirus strain), departing Ushuaia, Argentina on 1 April 2026. As of 15 May 2026, the World Health Organization has documented 11 confirmed or probable cases, 9 suspected cases, and 3 deaths across 33 countries on a 42-day WHO isolation protocol.
HantaWatch aggregates data only from official public-health authorities: WHO Disease Outbreak News, US Centers for Disease Control and Prevention (CDC), European Centre for Disease Prevention and Control (ECDC), Institut Pasteur CNR Hantavirus, Pan American Health Organization (PAHO), Eurosurveillance, ReliefWeb. Live disease signals are refreshed every 6 hours via GitHub Actions.
Hantavirus is a family of RNA viruses primarily transmitted by rodents through urine, feces or saliva. Human infection causes two main syndromes: Hemorrhagic Fever with Renal Syndrome (HFRS — Old World strains: Hantaan, Seoul, Puumala, Dobrava, case fatality 0.1%–15%) and Hantavirus Pulmonary Syndrome (HPS / HCPS — New World strains: Sin Nombre, Andes, case fatality 30%–50%).
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