French hantavirus patient in critical condition on artificial lung as cruise outbreak spreads

A French woman lay in a Paris hospital bed, her blood circulating through a machine that did the work her lungs could no longer manage. The artificial lung—a device that oxygenates blood outside the body and returns it, a last resort in critical care—was keeping her alive as hantavirus ravaged her system. Dr. Xavier Lescure, an infectious disease specialist at Bichat Hospital, described her condition on Tuesday as severe, marked by life-threatening damage to both lungs and heart. He called the artificial lung "the final stage of supportive care," a phrase that carried the weight of exhausted options.

She was one of eleven people now known to be infected in what health authorities are calling the first hantavirus outbreak ever recorded on a cruise ship. Nine cases had been confirmed; two others were still suspected. Three people had already died, among them a Dutch couple whose journey through South America before boarding the MV Hondius appears to have set the entire chain of infection in motion.

The couple had spent months in Argentina and neighboring countries before the cruise, including a bird-watching excursion that took them to a garbage dump—a place where rodents carrying the virus thrive. Argentine health officials believe this is where they were exposed. The husband and wife boarded the ship anyway, unknowingly carrying the Andes virus variant, a strain that, unlike most hantaviruses, can spread between people in rare circumstances. By the time symptoms emerged, the virus had already moved through the ship's closed environment, infecting passengers and crew.

The evacuation was methodical and grim. On Monday night, 87 passengers and 35 crew members were escorted from the ship in Tenerife, in Spain's Canary Islands, by personnel in full protective gear and breathing masks. Two aircraft carried Dutch nationals, passengers from Australia and New Zealand, and Filipino crew members to the southern Dutch city of Eindhoven overnight. All were placed into quarantine. The ship itself, the MV Hondius, was now sailing back to the Netherlands to be cleaned and disinfected, with some crew members still aboard.

The latest confirmed case was a Spanish passenger who tested positive after evacuation and was now quarantined in a military hospital in Madrid. But the concern extended beyond those already sick. Hantavirus has an incubation period of one to eight weeks, meaning symptoms can take time to appear. Tedros Adhanom Ghebreyesus, the director of the World Health Organization, cautioned on Tuesday that more cases could emerge in the coming weeks. "At the moment, there is no sign that we are seeing the start of a larger outbreak," he said. "But of course the situation could change." He advised all returning passengers to quarantine for 42 days—a precaution that different countries would interpret and enforce in different ways.

The virus itself does not spread easily between people under normal circumstances; it typically moves from rodent droppings to humans. But the Andes variant detected on this ship had shown it could jump from person to person, albeit rarely. There is no vaccine and no cure. Early detection and treatment improve survival rates, but for the French woman in Paris, survival meant depending on a machine to breathe for her while her body fought an infection that had already claimed three lives and left a ship full of people waiting to see if they would be next.