A suspected outbreak of hantavirus aboard the MV Hondius has left three people dead and several others seriously ill, triggering an international health response. The vessel, currently stationed near Praia, became the centre of concern after cases of the rare but potentially fatal infection emerged during its transatlantic voyage.

Health authorities, including the World Health Organization and South Africa’s Department of Health, confirmed that investigations are ongoing, with at least one laboratory-confirmed case of hantavirus reported so far.

Outbreak Unfolds During Remote Voyage

The outbreak occurred during a long expedition cruise that began in Argentina roughly three weeks ago. The journey included stops in Antarctica, the Falkland Islands, and several remote Atlantic territories before heading towards Spain’s Canary Islands.

The first fatality was a 70-year-old passenger who died onboard. His body was later removed when the ship docked at Saint Helena. Shortly after, his wife collapsed at an airport in South Africa while attempting to return home to the Netherlands and died in hospital.

A third patient, identified as a British national, remains in intensive care at a Johannesburg hospital after falling ill near Ascension Island. Authorities are also working to evacuate two additional symptomatic passengers from the vessel.

Around 150 tourists and approximately 70 crew members were onboard at the time, raising concerns over possible exposure in a confined environment.

What Is Hantavirus And Why It Is Dangerous

Hantavirus is a rare but serious viral infection typically transmitted through contact with urine, droppings, or saliva of infected rodents such as rats and mice. While infections are uncommon, the virus can lead to hantavirus pulmonary syndrome, a severe respiratory condition that can be fatal.

The disease gained global attention recently following the death of Betsy Arakawa, wife of actor Gene Hackman, from hantavirus infection in the United States last year.

Symptoms often begin with fever, fatigue, and muscle aches but can rapidly progress to breathing difficulties as the lungs fill with fluid. There is currently no specific cure or antiviral treatment for hantavirus, making early detection and supportive care critical for survival.

Although rare, limited human-to-human transmission has been documented, adding to concerns in confined settings such as cruise ships.

Global Response And Containment Measures

The WHO has confirmed it is supporting a “public health event” linked to the vessel, working alongside national authorities and the ship’s operators to conduct epidemiological investigations and laboratory testing. Viral sequencing is also underway to better understand the strain involved.

South Africa’s National Institute for Communicable Diseases has initiated contact tracing in Johannesburg to identify any potential secondary exposures linked to infected passengers who disembarked or received treatment in the country.

Medical care continues to be provided to passengers and crew onboard, while authorities assess the broader risk posed by the outbreak. Officials have emphasised that although hantavirus cases are rare, the severity of the illness warrants swift containment measures.

The incident has once again highlighted the vulnerabilities of cruise travel to infectious disease outbreaks, particularly in remote regions where access to immediate medical care is limited.

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