According to NPR, what began as a premium voyage through the remote waters of the South Atlantic has become a sustained ordeal for the passengers and crew of the Hondius, an expedition cruise ship operated by Oceanwide Expeditions, a Dutch adventure travel company. The vessel departed Ushuaia, Argentina, on April 1, stopping at Antarctica and several isolated South Atlantic islands before the outbreak emerged.
By April 11, a Dutch male passenger had died aboard. His wife disembarked at Saint Helena, a British overseas territory in the South Atlantic, and died in a hospital in South Africa on April 26 while being repatriated. On May 2, a German female passenger died on the ship. A fourth victim, a British national evacuated at Ascension Island and flown to South Africa, is being treated in intensive care at a private medical facility in Johannesburg; his condition is reported to be improving.
Three deaths in under six weeks. More than 150 people remain aboard.
American travel blogger Jake Rosmarin, filming from inside the ship, described the atmosphere in plain terms: “There’s a lot of uncertainty, and that’s the hardest part. All we want right now is to feel safe, to have clarity, and to get home.”
The outbreak involves a rare strain of hantavirus capable of spreading between people
According to the CDC, Hantavirus is transmitted through contact with the urine, feces, or saliva of infected rodents, most commonly rats and mice. It can also spread through inhalation of airborne particles carrying the virus. Once inside the body, it frequently triggers hantavirus pulmonary syndrome, a severe respiratory illness, or acute kidney failure. The case fatality rate falls between 30 and 40 percent.
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The BBC is reporting that health authorities have confirmed that the strain involved in this outbreak is the Andes strain, a variant of hantavirus first identified in South America and notable for its capacity, in rare cases, for limited human-to-human transmission through prolonged close contact. Most hantavirus variants spread only from animals to humans. The World Health Organization has said the broader public health risk remains low, but the Andes strain’s behavior adds a layer of concern that standard hantavirus outbreaks do not carry.
On a cruise ship, the danger compounds quickly. The vessel is a sealed environment: passengers and crew share recycled air through a centralized ventilation system. If infected rodents took up residence in the lower decks or air ducts, the entire ship functions as a single exposure zone. For the 150-plus people aboard the Hondius, the threat is invisible, persistent, and impossible to escape by moving to another part of the ship.
The infection has spread beyond the ship
The confinement of the outbreak to the Hondius is no longer certain. According to an official Swiss broadcaster, a former passenger who had disembarked earlier in the voyage sought medical attention after developing symptoms and has been confirmed as a hantavirus case at University Hospital Zurich. Swiss authorities have isolated him and are treating him for the Andes strain.
French authorities are monitoring a French national as a contact case after he traveled on the same commercial flight as the Dutch woman who later died. South African carrier Airlink confirmed that the flight carried 82 passengers and six crew. Contact tracing efforts are ongoing across multiple countries, France 24 reported.
Argentine officials investigating the outbreak’s origins told the Associated Press, on condition of anonymity, that the leading theory is that the Dutch couple who became the first victims contracted the virus during a bird-watching tour in Ushuaia before boarding, during which they visited a landfill where they may have been exposed to infected rodents.
Canary Islands authorities refused the ship entry
According to Al Jazeera, as the outbreak escalated, port authorities across the region declined to allow the Hondius to dock. The Canary Islands, an autonomous region of Spain off the northwest African coast, refused the vessel entry even after Spain’s central government indicated it would be permitted to do so. Canary Islands regional president Fernando Clavijo said authorities lacked sufficient information about the outbreak to guarantee public safety.
The Hondius has since departed Cape Verde and is sailing toward Tenerife, in the Canary Islands, where Spain’s interior ministry has said passenger evacuation will begin from May 11. Three passengers were evacuated from the ship before its departure, though the plane carrying two of them to Amsterdam was forced to make an unscheduled landing at Gran Canaria Airport after being refused refueling permission in Morocco. A failure in one patient’s life-support system then grounded the aircraft while the crew awaited a replacement.
Passengers who paid premium prices for an exclusive expedition have found themselves barred from land, trapped at sea, and watching their fellow travelers die. On land, a medical emergency triggers an ambulance and a hospital. On open water, even a well-equipped ship’s medical bay cannot manage organ failure requiring an intensive care unit and mechanical ventilation. Passengers watched their companions deteriorate with no realistic prospect of advanced treatment. The luxury cabins became waiting rooms.
Cruise ships were already known to be acutely vulnerable to outbreaks
The Hondius crisis is not the first time a luxury cruise ship has become a vector for mass infection at sea. According to Wikipedia, in February 2020, as the COVID-19 pandemic was taking shape globally, the Diamond Princess was quarantined at Yokohama port in Japan after cases were detected aboard. Thousands of passengers were confined to windowless cabins for weeks; fresh air became scarce. By the time the quarantine ended, 712 people had tested positive for the virus and at least 13 had died.
The Diamond Princess episode was the first sustained public demonstration of how catastrophically ill-suited a modern cruise ship is for containing a respiratory or airborne pathogen. The sealed ventilation systems, shared dining areas, and dense passenger loads that make these vessels commercially successful are precisely the features that make them biologically dangerous once an outbreak begins. The passengers of the Hondius are living through the same lesson, on the same type of vessel, with a different virus.
