A suspected hantavirus outbreak aboard a polar cruise ship in the Atlantic has left three people dead and at least one more in intensive care, prompting an international health response as authorities race to contain the situation.
According to the World Health Organization and South Africa’s Department of Health (via CBS News), the outbreak occurred on the Dutch-operated vessel MV Hondius, which had been sailing for weeks after departing Argentina on a route that included Antarctica and the Falkland Islands. At least one infection has been laboratory-confirmed, while multiple passengers and crew members have shown symptoms consistent with the virus. The ship is currently being held offshore near Cape Verde, where officials have blocked passengers from disembarking while assessing the risk.
Health authorities say one patient—a British national—was transferred to a hospital in Johannesburg and remains in intensive care, while two additional symptomatic crew members are still onboard awaiting possible medical evacuation.
“Detailed investigations are ongoing, including further laboratory testing and epidemiological investigations,” the WHO said, noting that medical care is being provided both at sea and on land.
The outbreak has drawn heightened attention given the rarity and severity of hantavirus infections. The disease is typically transmitted through exposure to infected rodent droppings, urine, or saliva, and can lead to life-threatening conditions such as hantavirus pulmonary syndrome or hemorrhagic fever with renal complications.
While infections are uncommon, they carry a high fatality rate—estimated at roughly 38% to 40% in severe respiratory cases, according to the Centers for Disease Control and Prevention (CDC).
Officials have stressed that the broader public is not at risk. “The risk to the wider public remains low. There is no need for panic or travel restrictions,” said WHO regional director Dr. Hans Henri P. Kluge. Cape Verde authorities echoed that stance, confirming the situation is contained and poses no threat to residents, even as they continue to deny the ship entry into port.
The victims include a 70-year-old man who died on board and whose body was removed at Saint Helena, as well as his wife, who later collapsed and died in South Africa. A third victim remains onboard the vessel.
