Three dead in suspected hantavirus outbreak on Dutch cruise ship off Cape Verde

Key facts

• Three passengers have died: a 70-year-old Dutch man, his 69-year-old wife, and a German national.
• A 69-year-old British man is in intensive care in a Johannesburg hospital after testing positive for hantavirus.
• The MV Hondius, a Dutch-flagged polar cruise ship, departed Ushuaia, Argentina, on March 20.
• The ship is anchored off Praia, Cape Verde, with 88 passengers and 61 crew on board.
• Passengers include 17 Americans, 19 British, 13 Spanish, and other nationalities.
• Two crew members are showing symptoms but have not yet been allowed to disembark.
• The first victim died on April 11; his body was removed at Saint Helena on April 27.

A lethal voyage across the South Atlantic

A suspected outbreak of hantavirus on the Dutch-flagged cruise ship MV Hondius has left three passengers dead and at least three others seriously ill, the World Health Organization and South Africa's Department of Health confirmed on Sunday. The vessel, operated by Oceanwide Expeditions, is now anchored off the coast of Cape Verde, where local authorities have refused permission for anyone to disembark, citing health risks. The first victim, a 70-year-old Dutch man, died aboard the ship on April 11 after presenting with fever, headache, abdominal pain and diarrhea. His body was removed nearly two weeks later at the British territory of Saint Helena, some 1,200 miles off the African coast. His 69-year-old wife was evacuated to South Africa at the same time but collapsed at Johannesburg's airport and died at a nearby hospital.

Confirmed case and critical care in Johannesburg

The only confirmed case of hantavirus so far is a 69-year-old British man who was evacuated from the ship on April 27 at Ascension Island, another remote Atlantic outpost about 800 miles north of Saint Helena. He was flown to South Africa and is now in intensive care in a Johannesburg hospital, where he is being kept isolated. South Africa's National Institute for Communicable Diseases is conducting contact tracing in the Johannesburg region to identify whether others were exposed to the infected passenger. The South African Department of Health identified the patient as a British national. The department said he fell ill near Ascension Island after the ship left Saint Helena and was transferred from there to South Africa.

Ship's operator and authorities scramble for a response

Oceanwide Expeditions, the Netherlands-based company that operates the MV Hondius, said the ship is sitting off Cape Verde and local authorities are assisting but have not allowed anyone to disembark. The company stated that two sick crew members on board require urgent medical care. The Dutch foreign ministry told AFP it was "busy looking at the possibilities to medically evacuate a few people from the ship," and that if this can take place, the ministry of foreign affairs will coordinate it. Cape Verdean health officials said Monday the situation is under control and there is no risk to people on land, but they will not let the vessel dock at the port of Praia, the capital. The WHO's regional director for Europe, Dr. Hans Henri P. Kluge, said in a statement Monday that "the risk to the wider public remains low. There is no need for panic or travel restrictions."

Passenger demographics and timeline of the outbreak

The MV Hondius departed Ushuaia, Argentina, on March 20 for a cruise that included visits to Antarctica, the Falkland Islands and other stops, and was due to arrive in Cape Verde on May 4 before heading to Spain's Canary Islands. The ship carries 88 passengers and 61 crew members, totaling 149 people from 23 nationalities. Among the passengers are 17 Americans, 19 from the United Kingdom, and 13 from Spain, the operator said. The three deceased passengers were from the Netherlands and Germany. The German national died on board Saturday, and his body remains on the ship. The German foreign ministry confirmed Monday that one of the dead was a German national. Oceanwide Expeditions stressed that the three deaths are not yet confirmed to be hantavirus; the only person confirmed to have the virus is the British man in intensive care in South Africa.

The nature of hantavirus and global context

Hantaviruses are a family of viruses found worldwide, spread mainly through contact with the urine or feces of infected rodents such as rats and mice. They can cause two serious syndromes: hantavirus pulmonary syndrome, which affects the lungs, and hemorrhagic fever with renal syndrome, which affects the kidneys. While rare, the WHO said hantavirus infections can be spread between people. There is no specific treatment or cure, but early medical attention can increase the chance of survival. The virus gained recent attention after Betsy Arakawa, the wife of late actor Gene Hackman, died from a hantavirus infection in New Mexico last year. Hackman died around a week later from heart disease. The WHO said it is supporting the public health event involving the cruise vessel, with detailed investigations ongoing, including further laboratory testing, epidemiological investigations, and sequencing of the virus.

Uncertainty and next steps for those aboard

With Cape Verde refusing docking permission and two crew members symptomatic, the immediate priority for Oceanwide Expeditions is to ensure that the two symptomatic individuals receive adequate and expedited medical care. The company said it is working with authorities to arrange medical evacuations. The Dutch foreign ministry is coordinating potential evacuations. The WHO said it is working with authorities to evacuate two other passengers with symptoms from the ship. One patient is already in intensive care in a South African hospital. The situation remains fluid, and the risk to the wider public is considered low, but the fate of the nearly 150 people on board hangs in the balance as negotiations continue.

A rare event with far-reaching implications

The outbreak on the MV Hondius is a stark reminder of the risks posed by rare pathogens, even in isolated environments. The cruise industry, already under scrutiny for infectious disease outbreaks, now faces a new challenge with a virus that has no specific treatment. The incident also highlights the complexities of international health regulations when a vessel is stranded in territorial waters. As the investigation unfolds, the case underscores the importance of rapid diagnostic capabilities and cross-border cooperation. For the families of the deceased and those still aboard, the wait for answers and resolution continues.

The bottom line

• Three passengers have died in a suspected hantavirus outbreak on the MV Hondius, with one case confirmed in a British man in intensive care.
• The ship is anchored off Cape Verde with 149 people on board; local authorities have not allowed disembarkation.
• Two crew members are symptomatic and awaiting medical evacuation, while the Dutch and German governments are involved.
• Hantavirus is rare, spread by rodents, and has no specific cure; early medical care improves survival chances.
• The WHO says the risk to the wider public is low and no travel restrictions are needed.