The World Health Organization (WHO) and regional health authorities have confirmed a deadly hantavirus outbreak aboard the MV Hondius, a Dutch-operated polar expedition vessel currently positioned off the coast of Cabo Verde.
As of today, May 4, 2026, the incident has resulted in three fatalities and several other severe infections.
Incident Summary
Casualties: Three passengers have died. This includes an elderly Dutch couple; the husband passed away while the ship was near St. Helena, and his wife died shortly after being evacuated to a hospital in Johannesburg, South Africa.
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Critical Case: A 69-year-old British national remains in critical condition in intensive care in Johannesburg after being medically evacuated.
Current Status of the Ship: The vessel is currently anchored off Praia, Cabo Verde. Local authorities have not yet permitted passengers or crew to disembark to prevent potential land-based transmission, though medical assessments are being conducted on-site.
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Medical Evacuations: Efforts are underway to evacuate two additional symptomatic crew members to the Netherlands for specialized treatment.
The Outbreak Investigation
The MV Hondius departed from Ushuaia, Argentina, approximately three weeks ago for an Atlantic crossing.
Source: Health officials believe the virus was likely contracted from contaminated environments (such as rodent droppings or urine) in areas visited during the early stages of the voyage in South America.
Strain Concerns: While hantavirus is typically not spread person-to-person, investigators are looking into whether this involves the Andes strain, which has historically shown a limited capacity for human-to-human transmission.
Official Response: The WHO, the European Centre for Disease Prevention and Control (ECDC), and the Dutch government are coordinating the response. They have emphasized that while the situation is serious for those on board, the risk to the general public remains low.
What is Hantavirus?
Hantaviruses are a family of viruses spread mainly by rodents. In humans, they can cause:
Hantavirus Pulmonary Syndrome (HPS): A severe respiratory disease.
Hemorrhagic Fever with Renal Syndrome (HFRS): A disease affecting the kidneys.
Symptoms: Early signs mimic the flu (fever, muscle aches, fatigue) but can rapidly escalate to acute shortness of breath and organ failure. Early medical intervention is critical as there is no specific vaccine or cure.
