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Today, Explained

Controlling hantavirus

11 May 2026

Transcription

Chapter 1: What happened during the hantavirus outbreak on the MV Hondius cruise ship?

1.887 - 19.11 Noel King

complex and unprecedented, the Spanish authorities are calling it. Before the disembarkation, asymptomatic. Passengers who'd been stuck aboard the Hanta or maybe Hanta virus-stricken Dutch cruise ship disembarked in the Canary Islands this weekend, prompting the highest stakes game of where are they now since maybe COVID?

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19.651 - 26.901 Noel King

Some of the evacuees, American and French, have since tested positive for the virus. And yet public health officials seem remarkably calm.

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27.041 - 36.855 Laurel Bristow

We do have one individual who was taken to the biocontainment unit early, early this morning. And we assessed that individual. They are doing well.

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36.835 - 45.192 Noel King

Possibly because this is not the one to freak out over. Coming up on today, explain from Vox answers to the age-old question, how bad is it really?

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Chapter 2: How are passengers being monitored after disembarkation?

60.038 - 78.57 Noel King

Support for Today Explained comes from CNN. Cool. Cable News Network, what's up? Do you want to live forever? What? Yes? Maybe? I haven't thought about it that much. Influential journalist Kara Swisher, I know her, is taking a hard look at the longevity industry to separate the influencer hype from evidence-backed science in her new CNN original series. Cool, Kara.

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Chapter 3: What is hantavirus and how is it transmitted?

78.55 - 94.602 Noel King

Kara's talking to Silicon Valley power players and trying out the latest in anti-aging technology to see what works and what's a waste. I bet she is. Kara Swisher wants to live forever. New series now streaming with a CNN subscription. Go to CNN.com slash subscribers to get started and save 40% for a limited time. Terms apply.

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95.02 - 100.889 Skylar Diggins

What's up, y'all? I'm Skylar Diggins, seven-time WNBA All-Star, Olympic gold medalist, and mom.

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101.209 - 108.039 Laurel Bristow

And I'm Cassidy Hubbard, host and reporter for nearly 20 years, covering the biggest names and stories in sports and mom.

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108.4 - 113.928 Skylar Diggins

And this is AmMom, a community for athletes, game changers, and moms of all kinds.

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Chapter 4: Is hantavirus considered a deadly disease?

114.449 - 116.872 Skylar Diggins

Dropping May 14th. Tap in with us.

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119.516 - 121.399 Noel King

You're listening to Today Explained.

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122.257 - 134.45 Laurel Bristow

My name is Laurel Bristow, and I am an infectious disease researcher. And now I work for the Emory Rollins School of Public Health and Communications and have a weekly radio show and podcast show all about public health called Health Wanted.

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134.951 - 147.825 Noel King

So we are speaking early Monday morning. Yesterday, the passengers that were on board the cruise ship that got hit by hantavirus, they got off the ship. And what happened next? What has been happening in the meantime with those people?

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147.805 - 156.896 Laurel Bristow

So all of the Americans who were on the cruise ship who were waiting to see their fate are now in a containment facility in Nebraska that is run by the University of Nebraska.

Chapter 5: How did the hantavirus outbreak start on the cruise ship?

156.916 - 172.916 Laurel Bristow

It's the only government-funded facility that can handle people who have been exposed to potentially, you know, novel or pathogenic viruses that have emerged. And so they are there to get monitoring and assessment from a care team. And then... Hopefully, they won't stay there for too long.

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172.956 - 186.113 Laurel Bristow

They're going to make a decision in conjunction with their care team about where they're next going to spend the 42-day quarantine that is being recommended, but they are not being forced to stay in that facility, though I think there's a possibility that some might choose to if they want to.

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186.693 - 196.105 Noel King

All right, so 42 days of confinement, that is a long time, and it suggests that what we're dealing with here is something that is kind of serious. What is hantavirus?

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196.962 - 215.571 Laurel Bristow

So, hantavirus is actually a family of about 40 different kinds of viruses, and they are primarily spread by rodents coming into contact with the infected feces, urine, or saliva of rodents who are carriers. And just to be clear, not all rodents are carriers of hantavirus. You know, people I've seen have been really scared about saying New York is full of rats.

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Chapter 6: What are the symptoms of hantavirus infection?

215.891 - 216.172 Laurel Bristow

Yeah.

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216.452 - 220.518 Unknown

I live in New York City. That is the mecca for rats and rodents.

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220.538 - 227.111 Skylar Diggins

Because rat poop is always over here in New York City. Rats be running all rampant around here in the city.

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227.853 - 232.892 Unknown

And that's why I drink out of a straw in New York City out of every can I get from Pizzeria.

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233.125 - 250.649 Laurel Bristow

Not every kind of rodent carries hantavirus. In the U.S., it's primarily deer mice, and they are usually found in the southwest of the America. That's where we see our hantavirus cases. What's unique about this is that the Andes kind of species of hantavirus is the only one that we have seen be able to transmit person to person.

Chapter 7: How does the public health response to hantavirus compare to COVID-19?

250.829 - 260.162 Unknown

Yes, it has spread person to person, but that has been in the context of very prolonged close contact, so people who are sexual partners, people sharing a bed.

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260.142 - 270.319 Skylar Diggins

And even then, it's still considered rare for this to happen. So this isn't like COVID, it doesn't spread as easily and you can't get it through casual contact like while out at the supermarket.

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270.439 - 293.098 Laurel Bristow

And because it happened to get into an environment that is conducive for the spread of infectious disease, the way the close confined quarters of cruise ships are, that's why we're seeing such a kind of profound spread within people who are on this cruise in a way that we haven't really seen before. Is it a very deadly disease? It can be. It depends on what kind of hantavirus it is.

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293.138 - 305.679 Laurel Bristow

But the case fatality tends to be up to 40 percent. I think Andy's virus is 38 percent currently. And that's because it can do things like cause pulmonary syndrome, which causes severe pneumonia that can cause people to die.

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Chapter 8: What lessons have we learned from the hantavirus outbreak?

305.699 - 307.222 Laurel Bristow

And it also can cause renal failure.

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307.502 - 312.711 Noel King

OK, so how did the Andy's version of hantavirus get on this cruise ship? What do we know?

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314.53 - 331.755 Laurel Bristow

We're not sure. That investigation is ongoing. But I think the most likely working theory at this point is that one or two people who got on the cruise ship were infected with hantavirus on land in Argentina before they got on the ship. And then on the ship, there was some degree of person-to-person transmission.

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332.136 - 349.347 Unknown

Prior to boarding the ship, the first two cases had traveled through Argentina, Chile, and Uruguay on a birdwatching trip. which included visits to sites where the species of rat that's known to carry on this virus was present.

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349.512 - 367.395 Laurel Bristow

The first case was a seven-year-old man who passed away on the ship, and it just seemed, nothing seemed out of the ordinary. And then, of course, two weeks later, his wife got off the ship, or his partner got off the ship, and then she became ill and died. And on the same day that she got off, someone else became extremely ill and had to be medevaced.

367.415 - 374.805 Laurel Bristow

And I think around that time, there started to be the suspicion that something was going on that was not just a fluke.

374.825 - 380.772 Unknown

The past few weeks have been extremely challenging for us all. as I'm sure you know.

381.012 - 384.238 Noel King

What's happening right now is very real for all of us here.

385.681 - 394.858 Unknown

We're not just a story. We're not just headlines. We're people, people with families, with lives.

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