They were on the trip of a lifetime. Now they’re quarantined as health officials work to contain a hantavirus outbreak
They were on the trip of a lifetime. Now they’re quarantined as health officials work to contain a hantavirus outbreak
They were on the trip – More than a month after embarking on a journey from Argentina, a group of American travelers aboard the MV Hondius now find themselves in temporary isolation at the National Quarantine Unit in Omaha, Nebraska. What began as a once-in-a-lifetime expedition across the Atlantic Ocean—promised to be a unique experience of wildlife and remote islands—has transformed into a prolonged period of health monitoring and uncertainty. As of Tuesday, 122 individuals, including 87 passengers and 35 crew members, have been evacuated from the ship, with most returned to their home countries. The remaining 27 people, comprising 25 crew and two medical staff, are en route to Rotterdam, Netherlands, where the vessel will undergo thorough disinfection.
Among those affected, three passengers have died since April 11, and several others have been confirmed or suspected to have contracted the hantavirus, according to the World Health Organization (WHO). The Andes strain, known for its severe complications, has been identified in nine of the 11 confirmed cases. The other two are classified as “probable,” with health officials still assessing their status. Despite the outbreak, WHO maintains that the risk to the general public remains low, emphasizing the contained nature of the situation.
Of the 122 individuals repatriated, 17 Americans and one British citizen are being tracked at medical facilities in the U.S. These patients, aged from their late 20s to early 80s, are under observation due to their increased vulnerability to severe outcomes. While 15 are in the quarantine unit, one has been placed in a biocontainment unit after testing positive for the virus. The U.S. Centers for Disease Control and Prevention (CDC) is awaiting further results to confirm the diagnosis. The National Quarantine Unit in Omaha, where Jake Rosmarin is currently staying, has become a central hub for monitoring and isolation efforts.
“Hopping back on for a second to let everyone know I’m okay and feeling well,” wrote Jake Rosmarin on Instagram, sharing a photo of himself in the austere room where he is quarantining. “The repatriation flight was smooth, and I safely made it to the National Quarantine Unit in Omaha. It’s been a very long few days, but hopefully I can start giving more updates again soon.”
The MV Hondius, operated by Oceanwide Expeditions, was initially hailed as a premier sailing experience. However, the outbreak has cast a shadow over the voyage, prompting emergency measures. Five Australians and one New Zealander are still in the Netherlands, awaiting transport back to their home countries later this week. The ship’s arrival in Rotterdam on Sunday evening marks the beginning of its decontamination phase, which is expected to take several days.
Health experts are focused on understanding how the Andes strain of hantavirus spread among the passengers and crew. Human-to-human transmission, though rare, has been noted in this case, raising concerns about close contact during the journey. Dr. Tedros Adhanom Ghebreyesus, WHO’s director-general, confirmed that 11 cases have been reported, with three fatalities. The remaining eight cases are under investigation to determine their severity and origin. Officials are also conducting detailed interviews with each passenger to trace potential exposure routes and assess risk factors.
At the University of Nebraska Medical Center, a team of specialists is monitoring the 17 Americans and one dual-national. The facility has been equipped to handle the situation, with resources allocated for both symptomatic and asymptomatic individuals. While most are asymptomatic, one person has shown mild symptoms, which were recently cleared after a negative test result. The CDC is working closely with Nebraska Medicine to evaluate patients regularly and decide on the optimal monitoring strategy for each case.
The decision to extend isolation or allow home monitoring depends on the date of the last exposure. For those whose exposure occurred on May 10, the quarantine period will last until at least June 21. Dr. Mara Jana Broadhurst, clinical laboratory director at the emerging pathogens and biocontainment unit at the University of Nebraska Medical Center, noted that the balance between facility-based and home-based monitoring is a dynamic process. “Decisions around how best to strike a balance between monitoring in these facilities and monitoring at home is something that is an ongoing conversation,” she said during a briefing by the College of American Pathologists.
Two additional individuals—a couple—have been moved to Atlanta’s Emory University for further evaluation. These patients are being held in a biocontainment unit due to limited capacity at the University of Nebraska Medical Center (UNMC). While one of them has tested negative for the virus, the other remains under observation. Health officials are continuing to assess the situation, with a focus on preventing the spread of the Andes strain beyond the ship’s initial outbreak.
As the next few weeks unfold, the passengers and crew will remain in a state of vigilance. The WHO has reiterated that the virus’s spread is limited to those on board, and no cases have been reported outside the quarantine facilities. Federal public health partners are collaborating with Nebraska Medicine to ensure comprehensive tracking and response. The broader implications of the outbreak are still being studied, but for now, the priority is to contain the virus and monitor those who may have been exposed.
Carl Williams, a state public health veterinarian from North Carolina, provided an update at a recent briefing. He mentioned that a local resident, who had close contact with an infected passenger, is being closely observed as part of the ongoing investigation. This case highlights the importance of identifying and isolating individuals who may have been exposed, even after leaving the ship. The situation serves as a reminder of the global nature of public health challenges and the need for coordinated efforts across borders.
