Hantavirus Outbreak Linked to Atlantic Cruise Ship Raises Concerns in Argentina
Buenos Aires, Argentina – Health officials and experts are urgently investigating a potential hantavirus outbreak linked to the MV Hondius cruise ship, which recently returned from a voyage to Antarctica. With several passengers testing positive for the virus, authorities are racing against time to determine the outbreak’s origins, especially since many affected travelers have already returned to their home countries.
Hantavirus, often transmitted through contact with infected rodents, has seen Argentina designated by the World Health Organization (WHO) as having the highest incidence of this rare, rodent-borne disease in Latin America. Since June 2025, the Argentine health ministry reported 101 cases of hantavirus infections, a significant rise compared to the previous year. The Andes virus variant prevalent in the region can lead to hantavirus pulmonary syndrome (HPS), with a mortality rate nearing 30% in reported cases over the last year.
Passenger Concerns and Health Measures
Three fatalities have been reported among passengers, sparking heightened concern. One victim, a 70-year-old Dutch man, died on April 11, with his body removed from the vessel nearly two weeks later in Saint Helena. Following this incident, his 69-year-old wife succumbed to illness in Johannesburg airport after flying from Saint Helena, while a German woman was reported to have died on May 2.
Authorities have confirmed that multiple passengers aboard the MV Hondius contracted the Andes virus. One individual remains in intensive care in a South African hospital, while several others have already been evacuated for medical attention. Notably, one passenger who disembarked earlier tested positive in Switzerland.
To facilitate international health efforts, Argentina plans to send genetic samples and testing equipment to several countries, including Spain, South Africa, and the United Kingdom. Meanwhile, a group of 23 passengers who disembarked on April 23 at Saint Helena have raised alarm; these individuals reportedly went unmonitored for days, leading to potential further spread.
Investigative Actions and Precautionary Measures
The Argentine government is working diligently to trace the movements of the infected passengers to identify possible points of exposure prior to their voyage. Areas under scrutiny include Ushuaia, the cruise’s departure point, as well as locations in Argentina, Uruguay, and Chile where the couple had traveled before boarding the Dutch-flagged ship.
Hantavirus typically has an incubation period of one to eight weeks, complicating efforts to pinpoint when and where passengers may have contracted the virus. In light of these developments, the WHO is collaborating closely with ship operators to monitor the health status of remaining passengers and crew, ensuring that precautions are in place to minimize further risks.
Even with these serious health concerns, the MV Hondius has obtained clearance to continue its journey to the Canary Islands, following the evacuation of three individuals showcasing symptoms associated with the virus. This decision, however, has sparked controversy, with officials in the Canary Islands expressing unease over the ship’s docking.
Climate Change and Hantavirus Spread
As the investigation unfolds, experts are drawing connections between climate change and the increasing prevalence of hantavirus in Argentina. The warming climate is believed to be conducive to rodent populations, which can carry the virus, thereby presenting greater risks to humans.
Hugo Pizzi, an infectious disease specialist, emphasized that climate change is transforming Argentina’s ecosystem, allowing conditions for rodent proliferation. “Argentina has become more tropical because of climate change, leading to disruptions and new environments where hantavirus can spread,” he stated.
As health officials continue to address this emerging crisis, vigilance and community cooperation remain essential to manage potential public health risks linked to the outbreak.
For ongoing updates and information regarding the hantavirus outbreak, health authorities encourage the public to remain informed and adhere to health guidelines.
