The 42-day federal quarantine for 18 Americans held at Omaha-based University of Nebraska Medical Center’s National Quarantine Unit ended June 22, with no confirmed U.S. hantavirus cases linked to the MV Hondius outbreak, The New York Times reported. Here is a recap of the outbreak and what it revealed about the U.S. biocontainment infrastructure.
- The quarantine is over. The CDC confirmed no hantavirus cases among Americans monitored since May, according to a June 18 update. The last six passengers who had remained at UNMC’s National Quarantine Unit through the full 42-day window were released June 22; 12 others had transitioned to home confinement beginning May 31.
- The outbreak killed three and sickened at least 13 globally. The MV Hondius, a Dutch-flagged expedition cruise ship, was at the center of a deadly Andes hantavirus outbreak that began in early April in the South Atlantic. The World Health Organization confirmed 13 cases and three deaths as of June 17. The Andes strain is the only hantavirus known to spread person to person, though transmission typically requires close, prolonged contact.
- UNMC housed the passengers; one tested positive on arrival. Seventeen of the 18 Americans arrived at UNMC on May 11; one who tested positive went to the Nebraska Biocontainment Unit while the rest entered the National Quarantine Unit — the only federally funded quarantine unit in the country. Two passengers originally routed to Emory University Hospital in Atlanta later transferred to UNMC.
- HHS ordered one passenger held against her wishes. Angela Perryman, 47, who tested negative and had no symptoms, challenged a CDC mandatory quarantine order that blocked her from returning to Florida. HHS Secretary Robert F. Kennedy Jr. signed an order keeping her at the Nebraska facility over the recommendation of a CDC medical review. Her attorneys told the Times they are considering litigation.
- Infectious disease experts pushed back on transmission risk framing. Michael Osterholm, PhD, director of Minneapolis-based University of Minnesota’s Center for Infectious Disease Research and Policy, said the outbreak’s superspreader dynamic was the missing piece in public discourse, and that the median 18-day incubation meant most expected cases would have surfaced within the first three weeks. Matthew Sims, MD, PhD, director of infectious disease research at Grand Rapids and Southfield, Mich.-based Corewell Health, said tuberculosis-level precautions are sufficient for most U.S. hospitals and that measles, not hantavirus, is the bigger operational threat.
- The outbreak tested a health system increasingly asked to fill federal gaps. Leaders at UNMC and Emory — two of the 12 federally designated Regional Emerging Special Pathogen Treatment Centers — told Becker’s the close coordination underpinning the response depends on sustained investment in regional networks and relationships, at a time when federal public health capacity is being reduced.
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