r/hantavirusoutbreak

The WHO is still calling the Andes Hantavirus limited transmission through close contact

The WHO is still calling the Andes Hantavirus limited transmission through close contact

Despite full knowledge that the Epuyen outbreak had an Ro of 2.12 in line with Covid and that it was spread easily at a distance and through casual social contact, and the full knowledge that infected people on the cruise ship had no close contact with the infected people, WHO today is still unwilling to admit this virus transmits efficiently with casual contact.

https://www.who.int/news-room/events/detail/2026/05/20/default-calendar/hantavirus-in-focus-i-what-we-know-and-what-it-means

"In May 2026, WHO was notified of a multi‑country cluster of hantavirus infections linked to an expedition cruise ship. As of 13 May, 11 cases, including three deaths, had been reported, associated with Andes virus—a strain capable of limited human‑to‑human transmission through close contact.

u/cccalliope — 8 hours ago

Hantavirus Patient Ordered to Stay in Quarantine Despite Desire to Leave

"Ms. Perryman said she and the 17 other passengers were told during a video conference call with federal officials on Sunday that if they did not remain at the unit voluntarily, they would receive a mandatory quarantine order keeping them there.

Her order came on Monday, authorized by Jay Bhattacharya, acting director of the Centers for Disease Control and Prevention. Citing federal public health law, it requires her to remain in the Nebraska facility for 21 days after her arrival, a period that expires on May 31."

https://archive.is/jPKad

u/cccalliope — 1 day ago
▲ 950 r/hantavirusoutbreak+1 crossposts

Canadian in isolation tests positive for hantavirus after leaving cruise ship, B.C.'s top doctor says

A Canadian isolating in B.C. has presumptively tested positive for hantavirus after leaving the cruise ship affected by an outbreak of the Andes strain in recent weeks, B.C.'s top doctor said Saturday.

Dr. Bonnie Henry, provincial health officer, said Saturday the patient started to develop mild symptoms, including fever and headache, two days ago. The individual was taken to hospital in Victoria, and assessed and tested there.

The BC Centre for Disease Control confirmed a presumptive positive test result on Friday. It will need to be confirmed by a microbiology lab in Winnipeg. The person is still in hospital in isolation and considered stable. [...]

cbc.ca
u/Anti-Owl — 4 days ago

Please hantavirus don't be another pandemic

Please hantavirus can't be another global pandemic no more vaccines or lockdowns 😔 please no more divisions and conflict among people's I swear politics school society everything got worse since the covid lockdowns and I don't want to live in a worse world. 😭 Please I hope hantavirus is not gonna become another pandemic and cause more hate and I don't want to be locked in again like a prisoner

reddit.com
u/LobsterPrawnShrimp — 2 days ago
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CDC has made the right changes to contain the outbreak for U.S.

The CDC is having people isolating in their homes wear a respirator if they are near others in the house. Also and most importantly they say a health department worker will come to the house twice a day in person to check on them. This is crucial and actually allows the initial rise in temperature which is believed to be the most contagious time to be caught before household members are exposed. This is a huge change from the scouts honor of taking one's own temperature and not wearing a respirator when out of the room.

https://www.cdc.gov/hantavirus/php/emergency-guidance/index.html#:~:text=Coordinate%20any%20urgent%20or%20necessary,home%20and%20away%20from%20others

General precautions

Health departments should advise all individuals with high-risk exposure to modify their activities during the monitoring period to protect their household members and communities as follows:

  • Practice good hand hygiene
  • Ensure good ventilation
  • Wear a respirator or well-fitting mask that covers the mouth and nose, if indoors with others
  • Maintain distance
    • Avoid kissing, hugging, or other intimate contact
    • Avoid sharing a bedroom with anyone
  • Avoid exposing others to bodily fluids
    • Avoid sharing items that may be contaminated (e.g., toothbrushes, cigarettes/vapes/hookah, or unwashed towels, bedding, or clothing, etc.)
    • Avoid sharing food out of the same plate or bowl, eating from the same utensil, or sharing beverages
  • Delay nonessential medical or dental appointments
    • Coordinate any urgent or necessary care with the health department in advance and notify the healthcare facility

Monitoring

  • Monitoring by the health department should occur twice daily, in person
reddit.com
u/cccalliope — 3 days ago

Stop making predictions. Stop saying “there is no risk to the public.” I just want to know that tracing, testing, monitoring, and isolation are being strictly followed.

I wish everyone would stop making predictions about how this is going to go. We don’t know how this is going to go. A lot of us — including me — think everything is basically going to be okay from here on out, and that death and suffering will be limited. Yet a lot of us (including me) were DEAD WRONG on SARS-CoV2/COVID. So it’s fine if people say why they think everything will probably be okay, but a little uncertainty and humility would honestly be both more human AND more scientific.

I have been very concerned about global warming for decades but I NEVER thought modern scientific civilization would have a major deadly pandemic until I was sitting in my apartment in NYC day after day in March/April 2020 hearing the city silent besides ambulances while each day the death toll in the city rose by the 100s or 1000s until after 45 days into the pandemic there were 20,000 people dead of SARS-CoV2/COVID in NYC. My microbiologist spouse knew better, of course, LOL.

And I don’t want to hear ”there is no risk to the public.” What I want to hear is that the precautionary principle is being diligently followed in order to track, trace, test, monitor, isolate, quarantine as strictly as possible in order to nip any possibility of a larger outbreak in the bud. Getting the details of that is nice, if it’s possible, but just getting told over and over that that is happening and we will get through this is also fine.

LOL Andrew Cuomo is a bad guy in many, many ways but goddamn some of his daily televised/live-streamed video press conferences during the worst of the COVID pandemic and the lockdowns were friggin’ amazing and so reassuring at times. And he didn’t tell us “there is no risk to the public.” It may just be ”communications” but it matters.

reddit.com
u/Dismal_Chemistry_434 — 3 days ago
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Slides from Gustavo Palacios’ presentation on Andes Virus to the WHO at Zoom meeting on May 15

These are screenshots of the slides from Gustavo Palacios’ presentation on Andes Virus to the WHO at the Zoom meeting on Friday, May 15. I may have missed one but I think I got them all.

u/Dismal_Chemistry_434 — 5 days ago
▲ 24 r/hantavirusoutbreak+1 crossposts

What science knows about Andes hantavirus and why governments ignore it

The 2026 MV Hondius cruise ship outbreak represents a terrifying milestone in global epidemiology. As the first known shipborne Andes virus event in recorded history, the outbreak has already claimed three lives and scattered a highly lethal pathogen across multiple countries.

Hantaviruses belong to a family of RNA viruses that are naturally maintained and carried by wild rodents. While most hantaviruses are transmitted exclusively from animals to humans, the Andes strain is uniquely dangerous because it is the only hantavirus in the world with documented person-to-person transmission capabilities. This distinct biological property transforms the virus from a localized ecological hazard into a pathogen with profound global reach.

wsws.org
u/DryDeer775 — 4 days ago
▲ 39 r/hantavirusoutbreak+2 crossposts

The indictment of David Morens and the threat posed by the hantavirus: A discussion with Peter Daszak

In late April 2026, a federal grand jury unsealed an indictment against Dr. David M. Morens, the former senior adviser to Anthony Fauci at the National Institute of Allergy and Infectious Diseases (NIAID). The charges, which include five counts spanning conspiracy, destruction and falsification of federal records, and aiding and abetting, carry a theoretical maximum sentence of 51 years in prison.

The indictment of David Morens and the hantavirus outbreak aboard the MV Hondius are not coincidental juxtapositions. They are expressions of the same underlying crisis or the systematic subordination of public health to the imperatives of geopolitical aggression, domestic political repression and the defense of private profit. Understanding this connection is the starting point for any serious political response.

wsws.org
u/DryDeer775 — 5 days ago

How likely are we to return to social/physical distancing measures?

Since it’s sounding like this is airborne and has a much higher CFR than COVID, what do we think the likelihood is of a return to broad-based, population-level social distancing?

reddit.com
u/Adept_Strategy_9545 — 5 days ago

Recent Argentina Andes hantavirus mortality rates pretty similar by age group, slightly higher for 20-29 year olds

This is a very small pool of data but as far as lethality by age, in cases of Andes hantavirus (ANDV) so far since the middle of 2025 in Argentina the group with the highest fatality rate so far is 20-29 year olds. But overall it’s pretty consistent. Since these human-to-human transmission outbreaks are rare my understanding is it primarily infects people working in physically demanding and active outdoor professions that result in them encountering the wild rodents that spread it (logging for one).

This graph is in Spanish but “No fallecidos” means Not Deceased/Survived the infection, ”Fallecidos” means Deceased due to the infection. “Letalidad” is Lethality.

The % death rate by age group in this small pool of ANDV data for this year is:

0-9 year olds: 100% (but only 1 case)

10-19 year olds: 25% (out of 12 cases)

20-29 year olds: 37.5% (out of 24 cases)

30-39 year olds: 31.8% (out of 22 cases)

40-49 year olds: 32% (out of 25 cases)

50-59 year olds: 30.8% (out of 13 cases)

60-69 year olds: 20% (out of 5 cases)

No cases recorded for older people in this time period.

Source: https://www.argentina.gob.ar/salud/boletin-epidemiologico-nacional/boletines-2026

It’s in there somewhere, I didn’t pull this out myself and haven’t hunted down exact document and page yet but this is link other person provided and they are credible.

u/Dismal_Chemistry_434 — 6 days ago

Hantavirus Doesn’t Spread Easily, but Officials May Be Downplaying Risks

https://www.nytimes.com/2026/05/14/health/hantavirus-spread-risk.html

"Close, sustained contact.

That, health officials have repeatedly said, is the only way that the Andes hantavirus, which caused an outbreak on a cruise ship and has gripped the world’s attention, spreads among people.

“You have to be in close contact with someone who has a lot of symptoms,” Dr. Jay Bhattacharya, acting director of the Centers for Disease Control and Prevention, said in an interview on Fox News.

But scientists who have studied hantaviruses for decades are far less certain about how the virus might behave.

They agree with health officials that the Andes virus is not particularly contagious and is unlikely to spur a bigger outbreak. But they said research has shown that under certain circumstances, the virus can be transmitted without direct contact.

“It’s important to be honest scientifically and communicate that, because otherwise you lose credibility,” said Steven Bradfute, a viral immunologist and hantavirus expert at the University of New Mexico.

In an interview, Dr. Tedros Ghebreyesus, director general of the World Health Organization, acknowledged that officials have emphasized close contact as the way the virus spreads to avoid panicking people over rarer possibilities.

“It’s very difficult to explain to people saying, ‘OK, this is the exception, this is the norm,’” he said. “When you say the exception, they might still think that that’s something frequently happening as well.”

The hantavirus outbreak that began on the Dutch cruise ship MV Hondius last month has thus far sickened at least nine people and killed three. Many of the roughly 150 passengers, including 18 in the United States, are being closely monitored in quarantine. The remaining were given a set of instructions to avoid spreading the virus to others including: take your temperature daily, don’t fly commercial and try to use your own bathroom.

On CNN’s “State of the Union” on Sunday, Dr. Bhattacharya could not recall when some passengers who disembarked on April 24 in St. Helena, an island in the Atlantic Ocean, had arrived on American soil. None had symptoms at the time of their travel, he said, so officials had not seen a need to alert the public or trace contacts.

“The virus doesn’t spread unless somebody has active symptoms,” he said.

That, too, is not certain, although some scientists believe people may be most contagious just as they are developing symptoms.

Some labs have studied hantaviruses for decades, but there is still much that’s not known about them because they grow slowly and are difficult to analyze genetically.

Hantaviruses are naturally found in rodents. The Andes virus, found primarily in Argentina, where the cruise ship began its journey, is the only hantavirus species known to spread among people. But scientists were slow to acknowledge that possibility.

“It was very difficult to convince people of that, even here in Argentina,” said Valeria Martinez, a virologist at the National Institute of Infectious Diseases in Buenos Aires.

In the largest outbreak characterized so far, in Epuyén, Argentina, Dr. Martinez and her colleagues carefully traced transmission patterns among 34 cases and 11 deaths between November 2018 and February 2019.

The study confirmed that the virus does not spread easily: None of 82 health workers who cared for patients became infected, even though many of them did not wear protective gear.

But the researchers also identified what they called “super-spreading events,” in which a single person spread the virus to several others. The outbreak began after a man who became infected from rodents developed a fever, and attended a birthday party with 100 guests.

“He was there only 90 minutes because he was feeling ill,” Dr. Martinez said.

Within three weeks of the event, five people at the party had become ill. One of those five soon died, and his wife most likely passed the virus to another 10 people at his wake. In all, six of 34 cases in the outbreak had no direct contact with those who were ill, and one seems to have become infected after simply saying hello as they crossed paths.

“That’s not close contact, and it’s also not prolonged contact,” said Joseph G. Allen, director of the Healthy Buildings program at the Harvard T.H. Chan School of Public Health.

Studies so far suggest that the disease is most contagious when people are carrying a lot of virus, perhaps just as they are starting to feel sick. But there have also been too few outbreaks large enough to be sure of that.

“We have so little data that it’s really hard to say anything concrete or definitive,” said Kartik Chandran, a virologist at the Albert Einstein College of Medicine.

Still, the fact that there have been very few cases should in and of itself reassure people that the virus is not very contagious, he and other experts said. After weeks of being cloistered together on the ship, only 11 of the roughly 150 passengers became infected, Dr. Tedros noted. “You can see how the virus actually is not really as efficient as Covid,” he said.

One person in the Argentina outbreak became ill after sharing a hospital room with a hantavirus patient, but again, had no physical contact.

Hantavirus typically infects people when they breathe in virus particles aerosolized from rodent droppings. That fact, some experts believe, leaves open the possibility that person-to-person transmission could possibly occur through the air too.

“I don’t understand why we are so reluctant to acknowledge the inhalation route when we’re talking about person-to-person transmission,” said Linsey Marr, an expert in airborne transport of viruses at Virginia Tech.

“Airborne transmission is certainly the simplest explanation in those cases,” she said of the Argentinians who had no direct contact with patients.

Dr. Tedros of the W.H.O. said his organization had not referred to the findings about the birthday party spread because they have not been replicated by other studies and because close contact is the most common way the virus spreads.

But Gustavo Palacios, a virologist at the Icahn School of Medicine at Mount Sinai and an author on the paper, disagreed with that stance.

“Our paper is important because it helps define the outer boundary of what Andes virus can do under favorable transmission conditions,” he said. “Most events will not look like that, but public-health guidance still has to account for that possibility.”

In the United States, the C.D.C. did not issue any guidance or statements on the hantavirus outbreak until late on Friday, and did not hold a news briefing till Saturday, nearly a month after the first passenger died. It still describes transmission as requiring close or intimate contact.

The C.D.C. appears to have designated an arbitrary measure of closeness, acknowledging the threshold as “not absolute.” It has cited being at a distance of less than six feet for longer than 15 minutes, out of the Covid playbook, as an indication of risk.

In public, some U.S. health officials have shown uncertain command of the facts of the current outbreak. Speaking about the first two people who died from the virus on the Fox News interview, Dr. Bhattacharya incorrectly said the couple had been in their 80s (they were 70 and 69) and added, “People who were very close to them, the roommates, a doctor who was caring for them, they’re the ones who got symptomatic.”

He was wrong about the details. C.D.C. scientists were not on the ship to investigate the outbreak, but W.H.O. officials who led the investigation are still working out how other passengers became infected.

The third person who died, an 80-year-old German woman, was not a roommate of the first two or even on the same deck. But she may have shared meals or been in other spaces with them, said Dr. Maria Van Kerkhove, the W.H.O.’s director of epidemic and pandemic preparedness.

Andrew Nixon, a spokesman for the Department of Health and Human Services, which oversees the C.D.C., said federal agencies have “been fully engaged from the outset.”

He did not respond to questions about the scientific basis for the six-foot guidance or about Dr. Bhattacharya’s errors.

“Attempts to second-guess this response overlook the ongoing work being done to protect the health and well-being of American citizens,” he said.

The W.H.O. does not include the six-foot distance in its guidance and its description of the outbreak acknowledges the scarcity of data, including on transmission.

“We are learning, and we will continue to learn, I think, for quite some time,” Dr. Van Kerkhove said. “The book is not written.”

u/cccalliope — 5 days ago