Andes Hantavirus Outbreak on Antarctic Cruise Ship: Global Public Health Response and Clinical Updates
核心洞察
A hantavirus (搜索) outbreak aboard the MV Hondius cruise ship has resulted in 11 reported cases and three deaths worldwide, with the Andes virus (搜索) strain confirmed in multiple patients.
Dr. Stephen Kornfeld, an oncologist who cared for sick passengers, has been cleared from Nebraska's biocontainment unit after inconclusive test results and is now asymptomatic.
WHO epidemic expert Maria Van Kerkhove emphasized that this is "not the next COVID" but remains a serious infectious disease requiring early clinical intervention for improved survival.
An international public health response is unfolding following a deadly hantavirus (搜索) outbreak aboard the MV Hondius, an expedition cruise ship that departed South America on April 1 for stops in Antarctica and several remote Atlantic islands. The World Health Organization (WHO) confirmed Wednesday that a total of 11 hantavirus cases linked to the cruise have been reported worldwide, including three deaths, with eight cases confirmed by laboratory testing.
The outbreak, identified as the first hantavirus (搜索) event on a cruise ship, involves the Andes virus (搜索) — a species of hantavirus found primarily in Argentina and Chile that can, in rare instances, spread between people through close contact.
Clinical Presentation and Patient Evacuations
Three patients were evacuated Wednesday from the ship while it was docked in Praia, Cape Verde. Associated Press footage showed health workers in protective gear conducting the evacuation. Two of the evacuees — a 41-year-old Dutch national and a 56-year-old British national — arrived at Amsterdam's airport Wednesday evening and were taken to separate hospitals. The third, a 65-year-old German national, was also evacuated.
Dutch ship operator Oceanwide Expeditions (搜索) reported that two of the evacuees were in "serious condition," while the third had no symptoms but was "closely associated" with a German passenger who died on the ship on Saturday. One evacuated patient was taken to a specialized hospital in Dusseldorf, Germany; the other was taken to a hospital in Leiden, the Netherlands.
WHO testing in Senegal confirmed that two of the evacuees were infected with hantavirus (搜索). South African authorities earlier reported that two passengers transferred there tested positive — one, a British man, was in intensive care; the other collapsed and died in South Africa.
American Physician Cleared from Biocontainment
Dr. Stephen Kornfeld, an oncologist from Bend, Oregon, who was traveling on the cruise ship and helped care for fellow passengers who became sick, has been cleared to leave the special biocontainment unit at the University of Nebraska Medical Center in Omaha. He was the lone American placed in isolation at the biocontainment unit after a nasal swab he took on the ship produced inconclusive results.
Kornfeld was among more than 120 passengers and crew evacuated from the ship and flown to different countries to enter quarantine. He was brought to Nebraska with 15 other Americans but was the only one taken to the isolated biocontainment unit. On Wednesday, the hospital announced that Kornfeld will now join the 15 other Americans being monitored at the National Quarantine Unit.
Appearing on CNN's "Erin Burnett OutFront" via video call from his hospital room Tuesday, Kornfeld said, "I feel wonderful, 100%." He described experiencing a period on the ship with flu-like symptoms including night sweats, chills, and fatigue, but stated he has no symptoms now.
Kornfeld explained that a nasal swab taken on the ship was later tested twice in the Netherlands — one result came back negative, the other positive. Dr. David Fitter of the U.S. Centers for Disease Control and Prevention (搜索) told reporters Wednesday, "The initial test that we received was from abroad and it was inconclusive in its results."
In addition to the passengers taken to Nebraska, two other Americans are being monitored at the serious communicable disease unit at Emory University Hospital in Atlanta.
Investigation into Origin and Transmission
Two Argentine officials investigating the origins of the outbreak said the government's leading hypothesis is that a Dutch couple contracted the virus while bird-watching in the city of Ushuaia before boarding. The officials, speaking on condition of anonymity because they were not authorized to brief the media, said the couple visited a landfill during the tour and may have been exposed to rodents.
At St. Helena, the body of the Dutch man suspected to be the first hantavirus (搜索) case on board was taken off the ship. His wife flew to South Africa, where she collapsed at Johannesburg's airport and died.
Global Contact Tracing Efforts
The South African health ministry reported that officials have traced 42 out of 62 people — including health workers — believed to have had contact with the two infected passengers who traveled there. All 42 tested negative for hantavirus (搜索).
Swiss health office spokesperson Simon Ming confirmed that a former passenger who tested positive was being treated at a Zurich hospital. The patient had left the ship during its St. Helena stop. The patient's wife has not shown symptoms but is self-isolating as a precaution.
British health officials said two passengers who flew home earlier in the ship's journey are self-isolating but do not have symptoms. The U.K. Health Security Agency said "a small number" of contacts of the two are also self-isolating but also are not showing symptoms.
WHO Assessment and Clinical Guidance
Maria Van Kerkhove, the WHO's top epidemic expert, sought to contextualize the outbreak's risk profile. "This is not the next COVID, but it is a serious infectious disease," she said. "Most people will never be exposed to this."
Van Kerkhove emphasized that access to clinical care is important because infected people can develop severe acute respiratory distress and need oxygen or mechanical ventilation. There is no specific treatment or cure for hantavirus (搜索), but early medical attention can increase the chance of survival. The hantavirus incubation period can be one to six weeks or more.
The WHO is recommending that passengers and crew from the cruise ship stay in quarantine, either at home or other facilities, for 42 days. Public health officials say the risk to the general public from the cruise ship outbreak is low.
Ship Status and Ongoing Monitoring
The MV Hondius departed Cape Verde with nearly 150 people on board — isolated in their cabins — and headed to Spain's Canary Islands. Health officials said passengers and crew members still on the ship were without symptoms. The journey to the Canary Islands will take three or four days, and Spain's health ministry stated their arrival "won't represent any risk for the public."
Two Dutch infectious diseases experts were joining the ship, according to Van Kerkhove. The ship's itinerary had included stops across the South Atlantic, including mainland Antarctica and the remote islands of South Georgia, Nightingale Island, Tristan da Cunha, St. Helena, and Ascension.