Hantavirus Outbreak 2026 — Live Global Tracker
Global Outbreak Monitor · 2026

Hantavirus
Live Tracker

36
Days since outbreak began

Real-time tracking of the 2026 MV Hondius hantavirus cluster and global endemic regions. Data aggregated from WHO, CDC, Africa CDC and international health authorities. Updated automatically.

Active MV Hondius anchored off Praia, Cape Verde. 7 cases (2 PCR-confirmed, 5 suspected), 3 deaths. 3 patients including ship’s doctor evacuated to the Netherlands. WHO tracing 80+ passengers from Johannesburg flight. Possible Andes virus human-to-human transmission under investigation. WHO Director-General: “Overall public health risk remains low.”
Confirmed Deaths
3
MV Hondius cluster · 2026
Active Cases
7
2 PCR-confirmed · 5 suspected
Annual Global (HFRS)
60k
Estimated cases worldwide
Fatality Rate · Americas
36%
HPS — up to 50% in outbreaks
Situation Analysis Automated assessment · Refreshes every 5 minutes
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— WHO · CDC · Africa CDC · Reuters
Affected Regions2025–2026
RegionScaleDataStatus
MV Hondius
7 casesActive
Argentina
28 deaths ’25Watch
South Africa
1 criticalWatch
United States
<1,000 totalEndemic
Europe
~1k/yrEndemic
China / Asia
~10k/yrEndemic
Source: WHO · Argentina Health Ministry · Africa CDC
Event TimelineMV Hondius · 2026
Apr 1
MV Hondius departs Ushuaia
147 passengers & crew. Antarctic & South Atlantic wildlife expedition.
Apr 11
Index case dies onboard
Dutch national (index case) dies. Remains held in Saint Helena pending repatriation.
Death
Apr 26
Dutch woman dies — Johannesburg
Close contact of index case. Collapsed on Airlink flight. WHO traces 82 passengers + 6 crew.
Death + Tracing
May 2
WHO notified — PCR confirmed
NICD South Africa confirms hantavirus via PCR. British national in ICU Johannesburg.
Confirmed
May 3
3rd death — German national
German passenger dies on board. Ship anchors off Praia, Cape Verde.
Death
May 6
Evacuation to Netherlands underway
3 patients incl. ship’s doctor evacuated to Netherlands. Ship’s doctor condition improving.
Now
Clinical ProgressionHantavirus Pulmonary Syndrome (HPS)
Phase 01
Prodromal
Days 1–5 after exposure
  • Fever (38–40°C), fatigue
  • Muscle aches, headache
  • Chills, dizziness
  • Nausea, vomiting, diarrhea
Phase 02
Cardiopulmonary
Days 5–10 — rapid deterioration
  • Shortness of breath
  • Lungs fill with fluid (pulmonary edema)
  • Acute Respiratory Distress Syndrome
  • Hypotension, tachycardia
Phase 03
Critical
Hours — requires immediate ICU
  • Cardiogenic shock
  • Mechanical ventilation required
  • Multi-organ failure
  • Fatality rate up to 50%
Frequently Asked QuestionsUpdated May 2026
Generally, no — hantavirus is not typically contagious between people. The primary route of infection is through contact with infected rodent urine, droppings or saliva. However, Andes virus — the strain suspected in this outbreak — is the only known hantavirus capable of limited human-to-human transmission, primarily among very close prolonged contacts (e.g. household members, caregivers). This is why WHO is monitoring the MV Hondius cluster closely.
No. WHO assesses the overall global public health risk as low. If you were not on the MV Hondius or in close contact with a confirmed case, your risk is essentially zero. The outbreak is contained to a specific cluster of people who shared a confined environment. There is no evidence of community spread.
No vaccine or specific antiviral treatment exists for hantavirus in Europe or the Americas. Treatment is supportive — oxygen therapy, managing fluid levels, and in severe cases, mechanical ventilation in ICU. Early hospitalisation significantly improves survival chances. China has a licensed hantavirus vaccine but it is not available in Western countries.
The exact source has not been confirmed. The ship visited extremely remote islands in the South Atlantic — including Antarctica, South Georgia, Nightingale Island, Tristan da Cunha and Saint Helena — all of which have rodent populations. The Dutch couple (index cases) had also travelled in Argentina before boarding, where Andes virus is endemic. Investigations including serology, genome sequencing and metagenomics are ongoing at NICD South Africa.
Early symptoms appear 1–8 weeks after exposure and resemble flu: fever, fatigue, muscle aches, headache, chills. Some patients also experience nausea, vomiting and diarrhoea. The dangerous phase occurs 4–10 days later when the lungs rapidly fill with fluid. Seek immediate medical attention if you develop respiratory distress after potential exposure to rodents or their droppings.
Yes. WHO and health authorities have not issued travel restrictions for any destination. Hantavirus is endemic in rural parts of Argentina and Chile — travellers to those regions should avoid contact with rodents and their habitats. Standard precautions apply: don’t handle rodents, avoid sleeping in rodent-infested areas, and seal food containers when camping or in rural areas.