Dr. Stephen Kornfeld boarded the MV Hondius in Argentina last month expecting an expedition cruise. Instead, the American physician found himself pressed into service as the ship's acting doctor after a fast-moving hantavirus outbreak sickened passengers, killed three people, and left 17 U.S. citizens stranded at sea with no clear path home.
Kornfeld told CNN he "fell into the role of becoming the ship doctor" after the vessel's onboard medic fell ill. What followed was a cascade of illness, confusion, and death that has now drawn the attention of the World Health Organization, multiple national governments, and at least one member of Congress who says Washington is failing the Americans trapped on board.
The facts paint a grim picture. At least eight passengers have been identified with hantavirus infections. Three are dead. At least two more remain in critical condition in hospitals in South Africa and Switzerland. And the ship, carrying 17 Americans and 129 other passengers, has spent days drifting between ports that would not accept it, most recently heading toward Spain's Canary Islands.
The first passenger to die was a 70-year-old Dutch man, on April 11. The next day, Turkish vlogger Ruhi Cenet filmed captain Jan Dobrogowski addressing passengers with what turned out to be a deeply misleading assurance.
"Tragic as it is, it was due to natural causes, we believe. And also whatever health issues he was struggling with, I'm told by the doctor, were not infectious, so the ship is safe when it comes to that."
The ship was not safe. The Dutch man's wife died on April 24. A German woman followed on May 2. Health officials now believe the Dutch couple contracted the virus during a birdwatching outing at a garbage dump near Ushuaia, Argentina, before boarding the ship.
Cenet, who shared the captain's April 12 briefing, told NBC News the passengers had been kept in the dark. "It turns out we were not well informed," Cenet said.
Oceanwide Expeditions, the ship's Dutch operator, said it was "aware" of the captain's announcement video and wanted "to provide clarity." The company said the cause of death was unknown at the time and that proper health, safety, and maritime standards were followed. That explanation may satisfy corporate lawyers. It is unlikely to satisfy the families of the dead.
Kornfeld described a situation that deteriorated fast. He said that "over 12 to 24 hours, it became clear there were a number of people sick and they were getting sicker." Passengers showed "a lot of confusion, a lot of weakness," along with "a lot of fever, fatigue, flushing, some gastrointestinal issues, some shortness of breath."
Hantavirus carries a mortality rate of approximately 40 percent, and its incubation period can stretch beyond a month before symptoms appear, meaning more cases could still emerge.
"The fear with hantavirus is you can go from seriously ill to critically ill very quickly. What happens with hantavirus, ultimate survivability is really dependent on your ability to get critical care at the right time. On the boat, that would not be possible."
That last sentence is the one that should focus minds in Washington. Critical care on a cruise ship is not possible. And yet 17 Americans remain aboard.
The outbreak is not a garden-variety hantavirus event. The World Health Organization confirmed the strain aboard the Hondius is the Andes variant, which is endemic to Argentina and, unlike most hantavirus strains, can be transmitted between humans. That distinction transforms the crisis from a tragic but contained animal-to-human exposure into a potential public health emergency.
The WHO reported eight cases on board, three of them laboratory-confirmed, with three deaths. The ship's own doctor was among the patients evacuated. Passengers have been isolating in their cabins while medical teams in protective gear boarded near Cape Verde, where AP footage showed deserted decks and a vessel under de facto quarantine.
WHO chief Tedros Adhanom Ghebreyesus wrote on X that "at this stage, the overall public health risk remains low," as Newsmax reported. But "low" is a relative term when the strain in question is the one hantavirus variant known to jump from person to person.
Spain agreed to receive the ship in the Canary Islands, though Canary Islands President Fernando Clavijo made his unease plain: "I will not blindly jeopardize the Canarian population." The ship had already been denied permission to land at Cape Verde, leaving it anchored offshore while governments negotiated.
The timeline raises hard questions about the initial response. The first death occurred April 11. The captain told passengers the next day it was natural causes and not infectious. Yet at least 29 living passengers from 12 countries disembarked and returned home after that first death but before officials understood they were dealing with hantavirus, the Washington Examiner reported.
The CDC, WHO, and state health officials in Georgia, Arizona, and California are now monitoring those returning passengers. The CDC said the U.S. government "is using our premier health experts to guide our response to this evolving situation" and is "working closely with our international partners to provide technical assistance and guidance to mitigate risk."
That language is bureaucratic boilerplate. It does not answer the question of why passengers scattered across a dozen countries before contact tracing began.
Oregon Rep. Janelle Bynum, Kornfeld's local congresswoman, posted to X on May 7 after speaking with the doctor directly.
"I spoke directly to the doctor on the hantavirus cruise ship this morning. Our federal government is failing the citizens on that ship."
Bynum followed up with an open letter to Secretary of State Marco Rubio and CDC Acting Director Jay Bhattacharya. The letter did not pull punches.
"This outbreak was first publicly reported at least four days ago. Despite the severity of the situation, my office has seen no evidence of a sufficient federal response to protect the Americans on board or to ensure their safe return home."
Bynum said she shared the letter publicly to pressure the White House into making a "real plan to get the Americans home safely and healthy." She told reporters the stranded citizens "have no guidance and no support to ensure their safe return home."
The congresswoman's criticism is pointed. But neither Rubio nor Bhattacharya has responded publicly, at least not in any statement captured in current reporting. That silence is itself a data point.
Meanwhile, the MV Hondius departed Cape Verde for the Canary Islands after medical evacuations, with roughly 140 people still aboard. Three medical evacuees arrived at Schiphol-East airport in the Netherlands. Oceanwide Expeditions said two specialized aircraft were being sent to evacuate two urgent-care patients and one companion.
Not every account from the ship is one of panic. Passenger Qasem Elhato told AP via WhatsApp: "Our days have been close to normal, just waiting for authorities to find a solution." Another passenger, Helene Goessaert, told Belgian broadcaster VRT: "We receive information at regular intervals. It is accurate. For the rest, it is a waiting game."
A waiting game, aboard a ship where a virus with a 40 percent mortality rate has already killed three people, with a strain that can spread person to person, and where the ship's own doctor had to be evacuated.
Several failures are already visible. The captain told passengers the first death was not infectious. The ship operator says it followed proper procedure. Passengers left the ship and flew home before anyone flagged the real risk. And now 17 Americans sit on a vessel in the Atlantic with no confirmed federal plan for their return.
The WHO has weighed in. The CDC has issued careful statements. Spain has reluctantly agreed to receive the ship. But the basic question, who is responsible for getting American citizens off a disease-stricken vessel and safely home, remains unanswered.
Kornfeld did not sign up to be a ship's doctor on a plague vessel. He stepped up because nobody else could. The least his government can do is step up to bring him and the other 16 Americans home.
