Published: May 9, 2026 |
On May 9, 2026, UK health officials confirmed plans to return 22 British passengers from the Dutch vessel MV Hondius after a hantavirus outbreak onboard resulted in three fatalities, with the evacuees set to undergo up to 72 hours of isolation at Arrowe Park Hospital prior to a compulsory 45-day quarantine. The MV Hondius, operated by Dutch company Oceanwide Expeditions and carrying 147 passengers and crew from 23 nationalities, is expected to anchor off the Spanish island of Tenerife early on Sunday, May 10, where evacuating nations have dispatched aircraft to collect their citizens. The World Health Organization has confirmed eight suspected cases of hantavirus infection linked to the voyage — six confirmed and two suspected as of May 9 — with the outbreak identified as the Andes strain, the only known hantavirus capable of spreading between people.
The Repatriation Plan: What UK Authorities Confirmed
The UK Health Security Agency (UKHSA), working alongside the Foreign, Commonwealth and Development Office (FCDO) and NHS partners, issued a formal statement on Saturday outlining the logistics for returning British nationals. The repatriation flight, chartered by the FCDO at no cost to passengers, will carry only British ship passengers and crew. Public health and infectious disease specialists from UKHSA and the NHS will be present on board throughout the flight to monitor passengers and enforce infection control protocols.
“We are standing up arrangements to support, isolate and monitor British nationals from the ship on their return to the UK and we are contact tracing anyone who may have been in contact with the ship or the hantavirus cases to limit the risk,” UKHSA stated on its official government page.
British passengers and crew showing no symptoms will be escorted by UK government staff to the airport and given free passage home. Those returning will be transferred to accommodation at Arrowe Park Hospital site for an initial 72-hour assessment and testing window, a joint statement from health departments in northwest England, police, and the local council confirmed. All British passengers and crew will then be required to isolate for 45 days, with UKHSA monitoring individuals throughout and conducting regular testing.
During a previous phase of the outbreak, three British nationals — one passenger and two others — had already been evacuated from the ship before it reached Tenerife. One British passenger, a man who presented with high fever, shortness of breath, and signs of pneumonia, was evacuated from Ascension Island to South Africa on April 27. He was confirmed as a hantavirus case and placed in intensive care at a private facility in Johannesburg, though the WHO noted his condition was improving. A British crew member suspected of infection was among those evacuated from the ship on May 6.
UKHSA separately confirmed that 30 passengers disembarked the MV Hondius during a stop at Saint Helena on April 24. All 30 have been contact-traced by the agency.
The Multi-Country Evacuation at Tenerife
Spain is working alongside with 22 countries and the World Health Organization. The ship will anchor offshore rather than dock at the port. Patients will be transferred directly to the airport by speedboat and vehicle, with no contact permitted with individuals outside the official evacuation teams. Spain’s health minister, Mónica García Gómez, confirmed on May 6 that Spanish citizens and anyone displaying symptoms would be quarantined at a military base in Madrid, while asymptomatic foreign nationals would be returned home by their respective governments.
Spain’s decision to allow the ship to dock was not without controversy. The president of the Canary Islands, Fernando Clavijo, initially said he “cannot allow [Hondius] to enter the Canaries” and refused the ship’s arrival, citing concerns for the safety of local residents — particularly in light of the islands’ experiences during the COVID-19 pandemic, according to Wikipedia’s MV Hondius outbreak article. Spain’s national health agency ultimately overruled that objection, stating the decision was “in accordance with international law and humanitarian principles.” The WHO had previously stated that Spain bore “a moral and legal obligation to assist these people, among whom are several Spanish citizens.”
Earlier in the evacuation process, an evacuation flight carrying one critically ill patient was forced to make an unscheduled landing at Gran Canaria Airport to refuel after Morocco denied the aircraft landing permission. A malfunction with the patient’s medical equipment caused further delays, a source at Spain’s health ministry told CNN.
Germany, France, Belgium, Ireland, and other countries confirmed they are dispatching aircraft to Tenerife. The European Union is providing two aircraft for nationals whose home countries lack assigned flights. Singapore has isolated two male residents in their 60s who were on board; Canada has three individuals self-isolating across Ontario and Quebec, one of whom was not on the ship but shared a return flight with two Canadians who were, according to CNN.
The Outbreak: How It Unfolded
The MV Hondius departed Ushuaia, Argentina — the world’s southernmost city — on April 1, 2026, on a multi-week polar expedition. The voyage included stops at mainland Antarctica, the Falkland Islands, South Georgia, Nightingale Island, Tristan da Cunha, Saint Helena, Ascension Island, and Cape Verde, according to the WHO’s outbreak notification published on May 2.
The first confirmed case was a 70-year-old Dutch national, the ship’s index case, who fell ill on board with fever, headache, abdominal pain, and diarrhea. He died on April 11. His body was removed from the ship on April 24 at Saint Helena, where his wife — aged 69 — also disembarked. She died on April 26 after collapsing at Johannesburg’s airport while attempting to fly home to the Netherlands, and later tested positive for the Andes hantavirus strain, South Africa’s health ministry confirmed. A third passenger, a German national who presented with pneumonia, died on board on approximately May 2.
Argentina’s health ministry is now leading an investigation into the index case’s movements before boarding. According to the AP, the leading theory — advanced by two unidentified investigators — is that the Dutch couple contracted the virus during a bird-watching tour near a landfill in Ushuaia, where they may have been exposed to rodents carrying the infection. The Argentine ministry confirmed the couple had made multiple crossings between Argentina and Chile during a four-month journey between November 27, 2025, and April 1, 2026, passing through Neuquén and the Sur region and visiting Misiones in northeastern Argentina — all areas historically identified by the WHO as hantavirus-endemic zones. Argentina recorded 101 hantavirus infections between June 2025 and May 2026, roughly double the caseload of the same period the previous year, according to the AP.
On May 6, gene sequencing confirmed the Andes virus as the causative strain. As of May 9, the WHO reports eight suspected cases — six confirmed — including the three deaths.
The Andes Virus: Why This Strain Is Unusual
Hantaviruses are a family of more than 50 viral species that infect rodents and occasionally humans, typically through inhalation of dust or air contaminated with rodent urine, feces, or saliva. The Andes virus, however, is categorically distinct from all other known hantaviruses: it is the only strain documented to spread between people. This human-to-human transmission, while rare, has previously occurred in sustained close-contact situations. A documented “super-spreader” event in Argentina saw one introduction of the Andes virus result in 34 infections, according to Wikipedia.
The Andes virus, endemic primarily to southern South America, causes hantavirus pulmonary syndrome — characterized by fever, gastrointestinal symptoms, rapid progression to pneumonia, acute respiratory distress syndrome, and shock. The CDC reports a mortality rate of approximately 35 percent for Western Hemisphere hantavirus strains including the Andes virus, according to Johns Hopkins University’s public health analysis published on May 8.
WHO chief of Epidemic and Pandemic Preparedness, Maria Van Kerkhove, addressed public concern directly. “This is not the next COVID, but it is a serious infectious disease,” Van Kerkhove told the Associated Press. “Most people will never be exposed to this.”
WHO Director-General Dr. Tedros Adhanom Ghebreyesus reinforced that assessment while acknowledging the investigation’s trajectory. “While we expect more cases to emerge,” he said, “we do not anticipate a large epidemic similar to COVID.” He confirmed the WHO does not consider the Hondius outbreak a global pandemic threat.
The unusual maritime setting has drawn scrutiny from infectious disease researchers. Kari Debbink, a teaching professor in Molecular Microbiology and Immunology, noted in the Johns Hopkins analysis: “Hantavirus is not normally found on cruise ships.” The ship’s enclosed cabins, shared dining areas, and ventilation systems created conditions in which human-to-human transmission via the Andes strain — ordinarily a marginal risk — became significantly more consequential.
Regional and Global Implications
The MV Hondius outbreak is the first documented hantavirus cluster aboard a cruise ship and the first multi-country Andes virus response in the era of modern global health surveillance architecture. Its implications reach beyond immediate patient care.
In South Africa, health authorities have identified 62 potential contacts of infected passengers who disembarked or transited through the country. As of May 8, 42 had been located and tested negative for hantavirus, while 20 remain untraced and may have traveled abroad, according to Johns Hopkins’ analysis. France identified eight nationals — none of whom were on the cruise — as close contacts of a confirmed case on a Saint Helena-to-Johannesburg flight on April 25, with one displaying mild symptoms.
For Argentina, the outbreak has renewed attention on hantavirus surveillance in Patagonia and the Andean foothills. The country’s Malbrán Institute is conducting rodent capture and testing along the route traveled by the Dutch index couple. With Argentine hantavirus infection rates already running at double prior-year levels, public health officials face pressure to determine whether the outbreak reflects a broader ecological or epidemiological shift.
For the global cruise industry, which carries approximately 35 million passengers annually, the Hondius case presents a novel biosafety challenge. Operators have well-established protocols for norovirus, COVID-19, and foodborne illness. Hantavirus — a rodent-transmitted pathogen with an incubation period of one to eight weeks, no approved vaccine, and a 35 percent mortality rate for the pulmonary form — has no comparable operational precedent.
The U.S. Centers for Disease Control and Prevention has classified the outbreak as a “Level 3” emergency response. The Dutch National Institute for Public Health classified it as a Level A2 infectious disease — the same designation used for Ebola, according to Wikipedia.
Background: Hantavirus and Previous Outbreaks
Hantavirus first gained widespread international attention with the 1993 Four Corners outbreak in the American Southwest, which killed 13 of the first 24 identified patients and led to the identification of the Sin Nombre hantavirus. Between 1993 and 2023, the CDC recorded 890 confirmed hantavirus cases in the United States alone. The Andes virus, identified in South America, was subsequently documented as uniquely capable of human-to-human spread, distinguishing it from Sin Nombre and all other known hantavirus strains.
The MV Hondius is a 4,472-ton expedition vessel owned by Oceanwide Expeditions, purpose-built for polar and remote-destination voyages. It accommodates 196 passengers across 95 cabins and carries a crew of 72. Its April 2026 voyage was a standard Antarctic expedition itinerary — one of hundreds operated globally each year — departing Ushuaia and traversing some of the world’s most ecologically rich and rodent-dense environments.
What Happens Next
On the morning of May 10, The arrival of the MV Hondius will trigger an urgent priority operation to evacuate all 147 remaining passengers and crew in a controlled manner. Spain and the WHO are coordinating aircraft arrivals from 22 nations, with each country implementing its own quarantine protocols on arrival.
For the 22 British nationals, the 45-day isolation requirement — the maximum incubation window for hantavirus — will keep them under UKHSA supervision until late June. Testing will continue throughout. UKHSA has stated it is in close contact with medical teams treating British nationals already hospitalized in South Africa.
The Argentine investigation into the outbreak’s origins will determine whether the Dutch couple’s exposure was a singular, traceable event or reflects a broader and undetected hantavirus transmission risk in the tourist corridors of Patagonia and Tierra del Fuego. That finding will carry implications for expedition cruise operators, adventure tourism companies, and public health regulators worldwide.
The WHO continues to assess the global public health risk as low. But with 20 untraced contacts still outstanding in South Africa, patients hospitalized across six countries — the Netherlands, South Africa, Germany, Spain, Switzerland, and Saint Helena — and an investigation that spans three continents, the Hondius outbreak will remain an active, multi-jurisdictional public health response for weeks to come.
