International contact-tracing effort launched for cruise ship passengers who disembarked before hantavirus outbreak confirmation

A major international contact-tracing operation is underway following an Andes hantavirus outbreak linked to the cruise ship MV Hondius. The vessel departed Argentina on 1 April and visited Antarctic and remote Atlantic locations. Three deaths have been confirmed, with five of eight suspected cases confirmed as of the report. Critically, 29 passengers of 12 nationalities disembarked at Saint Helena on 24 April—before the outbreak was officially confirmed on 4 May—and have since scattered globally to the US, UK, Australia, Taiwan, Switzerland, Denmark, and Singapore. WHO director-general Tedros stated the public health risk is low, emphasizing this is not a pandemic-scale event, though the Andes virus's 6-week incubation period means additional cases may emerge. Contact-tracing efforts include monitoring travelers across multiple countries, with evacuated patients receiving treatment in the Netherlands and Switzerland. Spanish authorities are managing the ship's arrival in the Canary Islands with strict isolation protocols.