Hantavirus Outbreak on MV Hondius Cruise Ship: WHO Issues Global Alert

The World Health Organization has raised alarms over a hantavirus outbreak linked to the MV Hondius cruise ship, reporting eight cases and three deaths. As health officials scramble to contain the rare Andes strain virus, international contact tracing efforts are in progress. The ship, which recently traveled from Argentina to West Africa, has confirmed cases among its passengers, prompting urgent medical responses and evacuation plans. This outbreak highlights the potential for rare viruses to spread in close quarters, raising concerns for public health safety. Read on to learn more about the ongoing situation and health measures being implemented.

By Narendra Chaudhary May 6, 2026, 17:43 IST

Hantavirus Cases Linked to MV Hondius

On Wednesday, the World Health Organization reported eight cases associated with a hantavirus outbreak on the MV Hondius cruise ship, including three confirmed laboratory infections. Global health officials are urgently working to contain the spread of this rare Andes strain virus and trace individuals who may have been exposed. So far, three fatalities have been reported, with at least four others falling ill. The ship had departed from Argentina and later arrived in coastal waters off West Africa. In a post on X, the WHO stated that Swiss authorities confirmed a hantavirus case in a passenger who sought medical attention at a hospital in Zurich after responding to a health alert issued by the cruise operator.

Ongoing Medical Treatment and International Coordination

The agency noted that the affected passenger is currently receiving medical care in Switzerland, and international contact tracing efforts are underway in coordination with relevant countries under international health regulations. The WHO confirmed that the virus involved in this outbreak is the Andes strain of hantavirus, which is rare and can spread limitedly from person to person. This strain was identified by the National Institute for Communicable Diseases in South Africa and hospitals in Geneva, Switzerland. The WHO also acknowledged the support from Senegal's Institut Pasteur de Dakar and Argentina's Administración Nacional de Laboratorios e Institutos de Salud in investigating and responding to the outbreak. South African health officials previously confirmed that two passengers disembarked from the ship tested positive for the Andes strain, one of whom, a British citizen, is currently in intensive care in a South African hospital.

Details on Confirmed Cases and Transmission

The second confirmed case involved a Dutch woman who died in South Africa, with the virus being confirmed posthumously through laboratory testing. Health officials indicate that hantavirus primarily spreads through contact with rodents, their urine, saliva, or feces. However, this particular Andes strain, typically found in Argentina and Chile, is unusual as it can also spread through close and prolonged contact between humans. Experts suggest that such transmission is relatively rare and usually occurs in situations involving close contact, such as sharing food or sleeping arrangements with an infected person. The MV Hondius cruise ship is currently near the coast of Cape Verde in West Africa, with at least three infected passengers still aboard, although evacuation plans are being prepared.