WHO warns of potential increase in hantavirus cases following cruise outbreak

The World Health Organization has warned of a potential increase in hantavirus cases following an outbreak on the MV Hondius cruise ship. Director General Tedros Adhanom Ghebreyesus noted the long incubation period and urged thorough quarantine measures for affected individuals.

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WHO warns of potential increase in hantavirus cases following cruise outbreak

Get you up to speed: WHO warns of potential increase in hantavirus cases following cruise outbreak

Tedros Adhanom Ghebreyesus, director general of the World Health Organization, warned that more hantavirus cases may arise due to the virus’s long incubation period. Three individuals aboard the MV Hondius cruise ship have died from hantavirus, and at least eight others have fallen ill or tested positive.

Tedros Adhanom Ghebreyesus, director general of the World Health Organization, stated that the situation concerning hantavirus could change, emphasising the potential for increased cases given the virus’s long incubation period. According to Oceania Expeditions, the tour operator, the MV Hondius has had at least eight people fall ill or test positive for hantavirus after three deaths related to the disease.

The MV Hondius will anchor at Rotterdam in the Netherlands on Monday for disinfection, according to Oceanwide Expeditions. Additionally, at least eight other individuals from the ship have fallen ill or tested positive for hantavirus.

WHO chief warns there ‘will be more hantavirus cases in the coming weeks’ | News World

One of the world’s leading health experts issued a simple warning yesterday: expect more hantavirus cases.

Tedros Adhanom Ghebreyesus, director general of the World Health Organization, said there are ‘no signs’ a pandemic is in the cards.

He told a press conference in Madrid: ‘But of course, the situation could change.

‘And given the long incubation period of the virus, it’s possible we might see more cases in the coming weeks.’

Three people who were aboard the MV Hondius cruise ship sailing the Atlantic Ocean have died of the rare but deadly disease.

At least 85 guests and 35 crew members have been evacuated from the vessel, tour operator Oceania Expeditions said on Monday.

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The Dutch cruise ship m/v Hondius is anchored in the port of Tenerife.
The MV Hondius has only a few crew and medical workers onboard now (Picture: ANP/Shutterstock)

At least eight other people who were on the ship have fallen ill or tested positive. Among them are a US citizen and a French woman, 65, who both tested positive after being evacuated.

Ghebreyesus said the 150 aboard the ship across the nearly six weeks since the ship left Argentina have faced ‘a very frightening situation’.

‘Some of the passengers were facing mental breakdown,’ he added. ‘They have the right to be treated with dignity and compassion.

‘There were some people around the world calling for the passengers to be contained on the ship for the full quarantine period.

‘Our view was that would have been inhumane and unnecessary.’

Passengers were flown back from Tenerife, in the Spanish Canary Islands, to their home countries on Sunday and Monday.

In a handout picture taken on May 9, 2026 and released by the British Ministry of Defence (MOD) on May 10, 2026, members of the UK Armed Forces drop medical kit to the Atlantic Island of Tristan Da Cunha to provide assistance to a British National who contracted hantavirus aboard an Atlantic expedition cruise ship, MV Hondius. Airdrop conducted on TdC using RAF and army SP Left is the RAF anaesthetist, middle is Army nurse and right TdC local. UK armed forces dropped into TdC to assist with British national who has suspected case of Hantavirus Medical kit dropped, as well as RAF consultant and Army nurse . (Photo by Unknown / MOD / AFP via Getty Images) / RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT
Members of the UK Armed Forces drop a medical kit on the Atlantic Island of Tristan Da Cunha, where a British cruise passenger is isolating
(Picture: Crown Copyright)

Ghebreyesus acknowledged that those living in Tenerife were ‘concerned’ about the passengers and cruise disembarking on the island.  

He added: ‘We said the risk was low, both to the people of Tenerife and globally, and all our efforts over the past week have been aimed at keeping it low. 

‘This is a serious situation, which we have taken – and continue to take – very seriously.’

Ghebreyesus praised Spain for the ‘compassion and solidarity’ it has shown the holidaymakers.

But he urged governments to do the same with the passengers and ensure they quarantine for at least 42 days.

The MV Hondius will anchor at Rotterdam in the Netherlands on Monday where it will be disinfected, Oceanwide Exepetitions said yesterday.

What is hantavirus?

A passenger checks his camera inside his cabin on the hantavirus-stricken cruise ship, MV Hondius, during the voyage to Spain's port of Tenerife, May 6, 2026. (AP Photo)
A cabin inside the MV Hondius, during the voyage to Spain’s port of Tenerife (Picture: AP)

Hantavirus, sometimes called the ‘rat virus’, is a rare family of pathogens carried by rodents – there is no vaccine or cure.

The virus spreads through contact with the faeces, urine and saliva of infected rodents.

Early symptoms can be easily mistaken for the flu, such as fever, chills or body aches, but can escalate to heart or lung failure.

At the centre of the cruise outbreak is the Andes strain, which is endemic to South America, including Argentina, where the ship departed on April 1.

Dr Stathis Giotis, a lecturer in life sciences at the University of Essex, told WTX that the Andes hantavirus is the only known strain that can be spread from human to human, though cases of this are few and far between.

‘It is clearly a serious situation for those directly affected and it deserves careful public health follow-up, but there is no evidence at present that this represents a broader epidemic threat,’ he said.

People who may get in contact with rat droppings, like agricultural workers or people simply cleaning their sheds, are at high risk.

Black rat droppings in the corner of the house wall. The concept of the dangers of diseases transmitted by rat droppings, such as typhus
Rat droppings look like this and can carry hantavirus (Picture: Getty Images)

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