By Bart H Meijer, Olivia Le Poidevin and Ingrid Melander, Reuters

This aerial view shows a boat heading towards the port from the cruise ship MV Hondius, stationary off the port of Praia, the capital of Cape Verde, on May 6, 2026. Evacuations were taking place on May 6, 2026 from a cruise ship stricken with a deadly outbreak of hantavirus, the World Health Organization said, as experts confirmed a rare strain that can be transmitted between humans.
Three people, two crew members and one other person, thought to be infected with the virus were being taken off the MV Hondius, anchored off Cape Verde, the WHO said. (Photo by AFP)

This aerial view shows a boat heading towards the port from the cruise ship MV Hondius, stationary off the port of Praia, the capital of Cape Verde, on May 6, 2026.
Photo: AFP

Authorities seek to trace passengers who disembarked before outbreak was detected
Three people have died, eight believed to have contracted virus
Ship heading to Spain’s Tenerife
Human-to-human transmission is uncommon

Countries worldwide are seeking to prevent further spread of the hantavirus, after an outbreak on a cruise ship, by tracking those who had already disembarked before the virus was detected and anyone in close contact with them since.

Three people – a Dutch couple and a German national – died in the outbreak on the MV Hondius. In total, five people are confirmed to have contracted the virus, with another three suspected cases, the World Health Organisation said on Thursday. Hantavirus is usually spread by rodents but can in rare cases be transmitted person-to-person.

All passengers who disembarked in St Helena in the South Atlantic Ocean, where the ship made a stop on 24 April, have been contacted, the ship’s operator said, adding this included people from at least 12 countries, among them seven British citizens, six from the US and one from New Zealand.

RNZ has approached the Ministry of Foreign Affairs and Trade about the case.

Meanwhile, another New Zealander onboard had not requested consular assistance to date, MFAT told RNZ on Thursday.

In a statement a MFAT spokesperson said consular officials were working with New Zealand embassies in the Hague and Madrid on the situation onboard MV Hondius.

They said no further information would be shared for privacy reasons.

The first confirmed case of hantavirus in this outbreak came in early May.

‘This is not Covid’

The WHO repeated that the risk to the general public was “low” even if the Andean strain of the virus, found in several victims, can in rare cases be transmitted among humans.

“This is not coronavirus, this is a very different virus,” Maria Van Kerkhove, WHO director of epidemic and pandemic management, told a press conference. “This is not the same situation we were in six years ago.”

The WHO said it was working on step-by-step guidance for when the dozens of passengers remaining on the ship, which is sailing to the Canary Islands, arrives there on Saturday or Sunday and the passengers disembark and travel home. None of these passengers currently have any symptoms.

This photograph shows a person in a white hazmat suit (Centre L) disembarking a Bombardier Challenger 605 medical aircraft allegedly carrying some of the passengers believed to be infected with hantavirus from the cruise ship MV Hondius, before being escorted to an ambulance at Schiphol Airport in Amsterdam on May 6, 2026. A plane that left Cape Verde following the evacuation of a cruise ship hit by the hantavirus landed in Spain's Canary Islands on May 6, while a second flight headed for the Netherlands. (Photo by Jeffrey Groeneweg / ANP / AFP) / Netherlands OUT

A person in a white hazmat suit (Centre L) disembarking a Bombardier Challenger 605 medical aircraft allegedly carrying some of the passengers believed to be infected with hantavirus from the cruise ship MV Hondius, before being escorted to an ambulance at Schiphol Airport in Amsterdam on May 6, 2026.
Photo: AFP / ANP / Jeffrey Groeneweg

Contact tracing and monitoring

The United States’ Centres for Disease Control and Prevention (CDC) said it was closely monitoring the situation, adding that the risk to the American public was extremely low at the time.

The Georgia Department of Public Health said it was monitoring two asymptomatic residents who had returned home after disembarking from the cruise ship.

The Arizona Department of Health Services said it was monitoring one resident, who was also on the ship, and was not symptomatic. According to the New York Times, California was monitoring a number of residents who had been on the ship.

One French citizen has been in contact with a person who had fallen ill but was not showing symptoms, officials said.

Contact tracing

Oceanwide Expeditions said they were now working to establish details of all passengers and crew who embarked and disembarked on various stops since March 20.

The Dutch couple who have died, and who are believed to be the first hantavirus cases of this outbreak, only boarded on 1 April.

Dutch airline KLM said it had taken the Dutch woman off a plane in Johannesburg on April 25 due to her deteriorating medical condition. She died before she could reach the Netherlands.

According to broadcaster RTL, a KLM stewardess who had been in contact with her has now been admitted to a hospital in Amsterdam after showing possible hantavirus symptoms.

Crew and passengers who helped the Dutch woman who died were being called daily for health checks, Dutch authorities told public broadcaster NOS.

Evacuations, tests

Three patients were evacuated from the ship on Wednesday. Two have been admitted to a hospital in the Netherlands, while another one was transferred to Germany for medical care.

Martin Anstee, an expedition guide, was one of the two evacuees in hospital in the Netherlands, according to Sky News, and told them he was “doing okay” but “there are still lots of tests to be done”.

The Duesseldorf University Clinic, treating the German evacuee, said she was not a confirmed case but rather a contact and was undergoing tests.

In Switzerland, a person admitted to hospital on Monday was stable but showed symptoms consistent with a hantavirus infection, the hospital said.

A Danish citizen who was aboard the Hondius has returned home and has been advised to self-isolate as a precaution, Danish health authorities said.

-Reuters with extra reporting from RNZ