Katelyn Jetelina, founder and author of the newsletter Your Local Epidemiologist, talks about what public health authorities do and don't know about the strain of hantavirus on the MV Hondius cruise ship, what the risks are and what the reaction of US-based health officials has signaled about pandemic preparedness here.

Photo: Specialist workers in full PPE carry boxes containing hazardous waste as they begin the process of disinfecting the cruise ship MV Hondius after it docked in the Port of Rotterdam following the recent hantavirus outbreak, on May 18, 2026 in Rotterdam, Netherlands. (Photo by Omar Havana/Getty Images)

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