Argentina investigates whether deadly cruise virus outbreak began there

Scientists warn climate change may be fuelling rise in hantavirus

Argentina is urgently investigating whether it was the origin point of the deadly Hantavirus outbreak that has turned the MV Hondius into the centre of an international health scare.

The country — already recording a sharp rise in infections — is now racing to trace where passengers travelled before boarding the Antarctica-bound vessel, as officials fear the deadly Andes strain of the virus may have spread during excursions through Patagonia and southern Argentina.

Cruise outbreak linked to rare Andes strain

Authorities confirmed that infected passengers aboard the ship tested positive for the Andes variant of hantavirus — the only known strain capable of limited human-to-human transmission.

The outbreak has already claimed multiple lives, including Dutch and German passengers, while others remain seriously ill. The ship itself has spent days stranded off Cape Verde as authorities struggle to contain the situation.

Now investigators are focusing intensely on the passengers’ movements before departure from Ushuaia — the southern port city known as the “end of the world.”

Climate change blamed for expanding danger

Researchers in Argentina increasingly believe climate change is helping drive the surge in infections by altering ecosystems and expanding rodent populations that carry the virus.

Infectious disease expert Hugo Pizzi warned that warmer temperatures and shifting weather patterns are changing the country’s disease landscape.

“Argentina has become more tropical because of climate change,” he said, pointing to rising outbreaks not only of hantavirus, but also dengue and yellow fever.

Scientists say cycles of drought followed by intense rainfall create ideal conditions for rodent population explosions. Heavy vegetation growth provides food sources, while disrupted habitats push infected animals closer to human populations.

Cases and deaths climbing sharply

Argentina’s Health Ministry says more than 100 hantavirus infections have been recorded since mid-2025 — roughly double the figure from the previous year.

Even more alarming is the rising death rate. The disease reportedly killed nearly one in three infected people over the past year, significantly above historical averages.

Symptoms often begin like ordinary flu — fever, muscle aches, chills and fatigue — before escalating into severe respiratory illness. That resemblance can delay diagnosis and treatment, especially among travellers unaware they may have been exposed.

Tourist trail under investigation

Officials are now reconstructing the movements of infected passengers through southern Argentina and neighbouring Chile.

One leading theory suggests a Dutch couple who later died may have contracted the virus during birdwatching excursions in forested regions around Patagonia. Investigators are tracing hiking routes and wilderness stops where contact with contaminated rodent droppings may have occurred.

The long incubation period — anywhere from one to eight weeks — makes pinpointing the exact source extremely difficult.

Global response intensifies

Argentina is now sending testing materials and viral samples abroad to help countries including Spain, South Africa, Netherlands and the United Kingdom detect possible cases linked to the cruise.

Health authorities stress the overall risk to the public remains low. Unlike highly contagious respiratory viruses, hantavirus usually spreads through exposure to infected rodent waste rather than casual human contact.

Still, the Andes strain’s limited ability to spread between people has heightened international concern.

A warning sign of changing disease patterns

Public health experts say the outbreak may reflect a broader trend: climate-driven environmental disruption pushing diseases into new regions and populations.

Once concentrated largely in Patagonia, the majority of Argentina’s hantavirus cases are now appearing farther north — a shift researchers believe reflects changing ecological conditions.

For families already devastated by the virus, the statistics have become brutally personal. Earlier this year, a 14-year-old Argentine boy died within hours of receiving a positive test result after doctors initially mistook his symptoms for flu.

A growing international concern

As authorities continue tracing passengers from the MV Hondius across multiple continents, the outbreak has evolved from an isolated maritime emergency into a wider warning about emerging infectious threats in a warming world.

The central question investigators are now racing to answer is simple — but hugely consequential: where exactly did the virus first jump to humans aboard the doomed voyage?

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24 minutes ago, Social Media said:

Climate change blamed for expanding danger

Oh my giddy aunt , is there nothing they wont blame on the bogey man 'climate change' ?

rodents on ships have been a problem for hundreds of years get some cats !

Once concentrated largely in Patagonia, the majority of Argentina’s hantavirus cases are now appearing farther north — a shift researchers believe reflects changing ecological conditions.

I don't guess it has anything to do with an increase in unfettered immigration, eh? Possibly due to Argentina's recent economic woes?

3 hours ago, johng said:

Oh my giddy aunt , is there nothing they wont blame on the bogey man 'climate change' ?

rodents on ships have been a problem for hundreds of years get some cats !

The rodents weren't on the ship. The Dutch couple who were the first fatalities had visited a bird colony (some reports suggest a landfill site).

Climate change is a driver for disease spread. Its why the black death ended up in England. Human behaviour is also a driver.

The Flu became a human problem when someone in ancient Greece invented the pig sty.

1918 Flu came about because of a combination fo the British and French militaries recruiting coolies for the Western Front, shipping them via Canada and Kansas, and then arriving just as the war was ending. In itself, not the main issue. The main issue was the war ending, and the decision to leave the men in the trenches, while the hospitals were emptied, allowing multiple reinfections among relatively fit men, which essentially gamed the virus.

The 40 year polio epidemic of the 20th Century that you never heard of was because of the introduction of running water into middle class households; Polio was endemic, but people had built up innate immunity, because of poor sanitary conditions. When middle class households had better sanitation, their kids didn't have such immunity, so when there was a normal outbreak, the impact was devastating on children in their early teens, from well to do households.

The history of COVID will be written long after we are all dead, but my bet will be it was the first in a series of EID events brought about by a change in human behaviour, namely globslised commerce; technologies and our interconnectivity brought about the ability of actually a fairly normal regional infection, to spread rapidly but with a significant mutation event along the way in Europe.

A bit earlier, we had SARS, which was mostly China and Canada, because there was an influx of Chinese immigrants into China, including their elderly (predominaly a disease of nursing homes).

After, a sort of still born pandemic was MERS; mostly Middle Eastern, because Saudi Arabia decided to import camels from Sudan, rather than the Canaries. Why was Saudi Arabia suddenly importing camels? Because old rich Arabs were retiring with a dream of having their own camel farm. That one surprised me; I first detected reports of mystery deaths among medical staff in Jordan about 3 months before the London-Dutch team identified the new virus. I did write at the time it had the potential to become a epidemic, pandemic, given the Haj season. But it never did. Perhaps the story there is that modern molecular diagnostics picks up more EID events than we supposed were happening.

10 minutes ago, Roadsternut said:

The rodents weren't on the ship. The Dutch couple who were the first fatalities had visited a bird colony (some reports suggest a landfill site).

Right the rodents weren't on the ship..and how do you know that ?

but anyway it was apparently the one variant of the virus that can spread from human to human but not from bird to human so it most probably came from a rodent and not a pangolin at a wet market 😋

15 minutes ago, Roadsternut said:

The history of COVID will be written long after we are all dead,

You mean the true history ? ..of a gain of function laboratory in Wuhan doing 'research' using US money and viri'ssss exfiltrated from Chapel hill North Carolina.

The history of COVID will be written long after we are all dead,

You mean the true history ? ..of a gain of function laboratory in Wuhan doing 'research' using US money and viri'ssss exfiltrated from Chapel hill North Carolina.

Nah... The Dems were planning to run an old guy with a bad memory and needed an excuse for him to not campaign in public, and then they needed a reason to allow millions of mysterious mail in ballots to show up in the wee hours to flip the results.

Do you think it's a coincidence that hantavirus and norovirus are showing up just before the midterms?