Hantavirus, in an unusual place.
Hantavirus normally spreads from rodents to people — never between humans. On 1 April 2026, an expedition cruise (MV Hondius) left Argentina with 147 people aboard. Three have since died and four are sick. Lab tests confirmed the rare Andes strain, the only hantavirus known to occasionally pass between people in close contact. WHO assesses global public-health risk as LOW.
These figures cover the currently unfolding Andes cruise-ship cluster (WHO DON599) plus the most recent CDC NNDSS Weekly publication for the United States. Endemic surveillance counts are reported separately in TERMINAL #003 as annual baselines.
Hantavirus normally spreads from rodents to people — never between humans. The Andes strain is the documented exception.
Click any country pin.
Live outbreak pins, country-level activity halos, cruise-route arcs, and recent-news signals from 10 RSS / API feeds. Click a pin to open the country detail — local mentions, import mentions, deaths referenced, mention period, and every cited source. Officer Hanta narrates context as you explore.
- NUMERICAL AND BIFURCATION ANALYSIS WITH SENSITIVITY ASSESSMENT OF A DETERMINISTIC LEPTOSPIROSIS HANTAVIRUS CO-INFECTION MODELJournal of Applied Analysis & Computation
- Hantavirus: A focused review for the emergency medicine clinicianThe American Journal of Emergency Medicine
- Emerging hantavirus risks in mass gatherings: epidemiology, diagnostic challenges, and outbreak preparednessDiagnostic Microbiology and Infectious Disease
- Towards broadly protective hantavirus vaccine: Immunological barriers, structural vaccinology and one health perspectivesClinical Immunology Communications
- HantavirusMedicina Clínica
- Wavefront propagation in a hyperbolic model of hantavirus infectionMathematics and Computers in Simulation
- Use of tocilizumab for severe hantavirus pulmonary syndrome: a MEURI case series with contextual comparisonsThe Lancet Infectious Diseases
- Driven magnetic 3D DNA walker coupled with CHA based on light-activatable hairpin: A dual-amplification strategy for ultrasensitive hantavirus RNA sensingAnalytica Chimica Acta
- Time to provide clear guidance around respiratory protection for hantavirus during outbreaks involving human to human transmissionInternational Journal of Nursing Studies
- Of mice and men: Updates on hantavirus disease and diagnosticsJournal of Clinical Virology
- Hantavirus risk and preparedness in Europe in an era of climate change and global mobilityClinical Microbiology and Infection
- Could bradykinin pathway inhibition change the course of severe hantavirus disease?Immunology Letters
- Andes virus-associated hantavirus cardiopulmonary syndrome and repurposing lipid medications to calm down the cytokine stormInternational Journal of Infectious Diseases
- Artificial intelligence for chest imaging in hantavirus pulmonary syndrome: A review of practical considerations for rare-disease imagingClinical Imaging
- Hantavirus infections: A growing global health concernWorld Journal of Virology
- IHS Says No Hantavirus Cases Confirmed in Pine Ridge Health Investigationkotaradio.com
- CDC testing finds no confirmed hantavirus infection in Pine Ridgekotatv.com
- CDC testing finds no confirmed hantavirus infection in Pine Ridgekotatv.com
- Study shows high need for respiratory support in patients with severe Andes hantavirus infectionsCIDRAP
- Hantavirus preparedness at human–rodent interfaces: lessons from China’s HFRS control and Andes virus transmission in mobile populationsEmerging Microbes & Infections
- Revisiting Animal Reservoirs of Hantavirus and Other Zoonotic Viruses Associated with Cruise Travel: Impact and PreventionAnimals
- Differences in Ecological Drivers for Leptospira and Hantavirus in an Urban Norway Rat PopulationEcoHealth
- Immunopathogenesis of vascular leakage in hantavirus infections: a systematic review of mechanisms underlying HPS and HFRSEuropean Journal of Medical Research
- Spatiotemporal correlation analysis between climate change and hantavirus outbreak in Argentina: Quantitative causal inference based on Google Earth Engine and Bayesian spatiotemporalJournal of Public Health and Preventive Medicine
- Hantavirus exposure among wildlife farmers in Vietnam: A warning for Southeast AsiaThe Conversation
- International Response to 2026 Andes Virus Outbreak on Cruise Ship Highlights the Value of Cross-Border Scientific Networks, According to Newly Published ArticleMount Sinai
- Andes virus on the MV Hondius cruise ship: what we know about this rare and potentially fatal hantaviruspasteur.fr
- Climate change, rodent ecology, and the rising risk of hantavirus outbreaks: an alarming public health concernfrontiersin.org
- Conserve O Gram 2/8: Hantavirus Disease Health and Safety UpdateNational Park Service (.gov)
- Chile declares health alert for hantavirusoutbreaknewstoday.substack.com
- 2026 NewsMaryland School of Medicine
- The Ordeal of a 42-Day Hantavirus Quarantine: ‘I Felt Like a Prisoner’The New York Times
- After cruise ship outbreak, review examines how hantavirus affects the brainCIDRAP
- Opinion | The hantavirus outbreak has officially ended. Here are 5 lessons.The Washington Post
- Postscript to the Hantavirus Outbreaktristandc.com
- Manifold’s Hondius Hantavirus Market: Why Bettors Put Just 2% on a Non-Passenger Case - tech-insider.orgGoogle News
- Andes Virus — A Clinical ReviewNEJM
- U.S. citizens on hantavirus cruise ship monitored at Nebraska MedicineAmerican Hospital Association
- UNMC researcher publishes hantavirus review articleUniversity of Nebraska Medical Center
- Hantavirus Cluster Linked to Cruise Ship Travel: A Comprehensive Review of a Looming Global Public Health ConcernCureus
- Hantavirus outbreak linked to cruise ship travel, Multi-locationsWHO DON
- Hantavirus outbreak linked to cruise ship over after last contact completes quarantine: WHO - ABC NewsBreaking News, Latest News and Videos
- Deadly Hantavirus Cruise Ship Outbreak Is Over 3 Months Later, W.H.O. SaysThe New York Times
- Hantavirus Cruise Ship Outbreak Over, WHO SaysForbes
- WHO declares cruise-linked hantavirus outbreak officially overAl Jazeera
- WHO declares hantavirus outbreak linked to cruise ship overReuters
- WHO declares hantavirus outbreak linked to cruise ship overThe Guardian
- Hantavirus Town Hall: What Frontline Healthcare Staff Need to Know About Andes Hantavirus PreparednessNational Emerging Special Pathogens Training & Education Center
- Hantavirus quarantine ends; no cases in the USAction News Jax
- The CDC said hantavirus outbreak is overDeseret News
What mainstream news is missing.
Every 30 minutes Officer Hanta sweeps clinical-trial registries, preprint servers, GenBank, ProMED, and credentialled virologists on X for verifiable, non-obvious hantavirus signals and posts them to its public terminal. You can read; you can't prompt.
Annual surveillance baseline · by country
Hantaviruses are endemic in many countries. The figures below are the most recent published surveillance baselines from each national / regional authority — they are not current weekly counts. Click any source to verify upstream.
| Country / region | Strain | Annual cases (baseline) | Annual deaths | Provenance | Source |
|---|---|---|---|---|---|
| China Shaanxi / Heilongjiang / Yunnan | Hantaan / Seoul | 11,000 | 110 | Annual pattern | China CDC ↗ |
| Russian Federation Russia · Volga / Bashkortostan | Puumala / Dobrava | 6,000 | 24 | Annual pattern | Rospotrebnadzor (Russian Federation) ↗ |
| Finland boreal forest belt | Puumala | 1,500 | 1 | Annual pattern | Finnish Institute for Health and Welfare (THL) ↗ |
| Germany Bavaria / Baden-Württemberg | Puumala | 1,300 | 5 | Annual pattern | Robert Koch Institute (RKI) ↗ |
| South Korea Gyeonggi / Gangwon | Hantaan | 400 | 12 | Annual pattern | Korea Disease Control and Prevention Agency (KDCA) ↗ |
| Sweden Norrland | Puumala | 350 | 1 | Annual pattern | Folkhälsomyndigheten ↗ |
| Belgium Wallonia / forest belt | Puumala | 200 | 0 | Annual pattern | Sciensano (Belgian Institute for Health) ↗ |
| Brazil agricultural belt | Juquitiba / Araraquara | 110 | 45 | Annual pattern | PAHO Epidemiological Alert (Dec 2025) ↗ |
| Slovenia Karst / Sava valley | Dobrava / Puumala | 100 | 5 | Annual pattern | Slovenian National Institute of Public Health (NIJZ) ↗ |
| France Ardennes / Franche-Comté | Puumala | 90 | 0 | Annual pattern | Santé publique France ↗ |
| Argentina Patagonia (Andes-virus zone) | Andes | 70 | 22 | Annual pattern | PAHO Epidemiological Alert (Dec 2025) ↗ |
| Chile Aysén / Los Lagos | Andes | 65 | 22 | Annual pattern | PAHO Epidemiological Alert (Dec 2025) ↗ |
| Panama Los Santos peninsula | Choclo | 40 | 4 | Annual pattern | PAHO Epidemiological Alert (Dec 2025) ↗ |
| Paraguay Chaco | Laguna Negra | 25 | 8 | Annual pattern | PAHO Epidemiological Alert (Dec 2025) ↗ |
| Uruguay agricultural belt | Andes / Lechiguanas | 12 | 4 | Annual pattern | PAHO Epidemiological Alert (Dec 2025) ↗ |
| Canada western prairies | Sin Nombre | 4 | 1 | Annual pattern | Public Health Agency of Canada (PHAC) ↗ |
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Three quick questions. We weight your answers across geography, exposure, and case contact, then point you at the right next step. Not a diagnosis.
Common questions
The questions readers ask most. For deeper coverage, jump to the pillar, the symptoms page, or the triage decision tree.
What is hantavirus?
Hantavirus is a group of RNA viruses carried by rodents that can cause two human syndromes: hantavirus pulmonary syndrome (HPS) in the Americas and hemorrhagic fever with renal syndrome (HFRS) in Eurasia. Most infections occur via inhalation of aerosolized rodent excreta.
Is hantavirus contagious between people?
Most hantavirus strains are not transmitted person-to-person. The Andes virus, found in South America, is the only strain with documented human-to-human transmission, and only during close prolonged contact.
What are the early symptoms of hantavirus?
Early symptoms appear 1–8 weeks after exposure and include fever, muscle aches, fatigue, headache, nausea, and abdominal pain. Respiratory symptoms (cough, shortness of breath) develop later in HPS; kidney symptoms develop later in HFRS.
How fatal is hantavirus?
Case fatality varies by strain: up to 35–40% for Andes and Sin Nombre virus (HPS), about 5–12% for Hantaan and Dobrava (severe HFRS), and below 1% for Puumala (mild HFRS).
Is there a vaccine for hantavirus?
There is no vaccine licensed in the United States, Europe, or most of the Americas. China and South Korea use bivalent inactivated vaccines against Hantaan and Seoul viruses with high coverage in endemic provinces.
What is the MV Hondius outbreak?
The MV Hondius is an expedition cruise that departed Ushuaia, Argentina on 1 April 2026 with 147 people aboard. By early May 2026 the ship reported 7 cases and 3 deaths from confirmed Andes hantavirus, with 5 of 7 samples PCR-positive at Geneva University.