Deadly Hantavirus Outbreak on Cruise Ship Near Cape Verde: 3 Dead, 5 Suspected Cases

A cruise ship anchored off the coast of Cape Verde is at the center of a hantavirus outbreak, with two confirmed cases and five suspected among passengers and crew. The World Health Organization (WHO) reports three deaths, one critical patient, and three others with mild symptoms.

This outbreak is significant due to the rare but severe nature of hantavirus infections and the challenges posed by the ship's remote location. Health authorities are working to contain the virus and conduct thorough investigations while managing passenger safety.

Cruise Ship MV Hondius Quarantined Amid Hantavirus Cases

The MV Hondius, carrying mostly British, American, and Spanish passengers, is anchored off Cape Verde in the Atlantic Ocean. The ship departed from Argentina in March and is now held in quarantine as health officials investigate hantavirus cases onboard. Passengers are currently not allowed to disembark.

Among the seven suspected and confirmed cases, three passengers have died: a Dutch couple and a German national. A British passenger was evacuated to South Africa for treatment and is critically ill, while three others exhibit mild symptoms.

Tracing and Evacuations Underway to Contain the Outbreak

The WHO is actively tracing contacts, including passengers on a flight from Saint Helena to Johannesburg taken by the deceased Dutch woman. Contact tracing efforts aim to prevent further spread of the virus.

Oceanwide Expeditions, the ship's operator, confirmed calm conditions onboard despite the outbreak. Plans are underway to screen and disembark passengers, with Spain’s Canary Islands—Las Palmas or Tenerife—expected to welcome the ship for a full epidemiological investigation and disinfection.

Dutch authorities are preparing medical evacuations for two symptomatic individuals and a guest associated with one of the deceased. The first fatality occurred on April 11 near Tristan da Cunha, with the body disembarked on St Helena on April 24.

Understanding Hantavirus and Its Risks

Hantavirus is primarily transmitted through contact with urine, feces, or saliva of infected rodents. Symptoms include fever, gastrointestinal issues, rapid progression to pneumonia, acute respiratory distress syndrome, and shock.

"The risk to the wider public remains low as hantavirus rarely spreads between humans," said the WHO in a statement.—World Health Organization

The virus’s presence on a cruise ship visiting some of the most remote locations on Earth, including Tristan da Cunha, highlights the challenges of managing infectious diseases in isolated environments.

Looking Ahead: Containment and Passenger Safety Measures

Health authorities and the ship operator are coordinating closely to ensure a full investigation, disinfection, and medical care for affected passengers. The WHO’s epidemic preparedness director, Maria Van Kerkhove, emphasized the importance of a comprehensive epidemiological assessment upon arrival in the Canary Islands.

Passengers and crew remain under close medical observation, with evacuations prioritized for those showing symptoms. The situation underscores the need for vigilance in monitoring zoonotic diseases, especially in confined and remote settings like cruise ships.