Hantavirus infections cruise ship

A suspected outbreak of hantavirus on the MV Hondius, a cruise ship in the Atlantic Ocean near Cape Verde, has resulted in three deaths and at least three illnesses as of May 3, 2026.

Key facts:

• A laboratory confirmed one case of hantavirus infection.
• Three individuals have died, including an elderly couple from the Netherlands.
• A patient remains in intensive care in a South African hospital.
• Approximately 150 passengers were onboard during the outbreak.
• The ship is currently anchored near Cape Verde, with local authorities prohibiting disembarkation.

The virus primarily spreads through contact with infected rodent urine or feces. Hantaviruses can cause serious conditions such as hantavirus pulmonary syndrome and hemorrhagic fever with renal syndrome. This outbreak marks the first known instance associated with cruise ships, raising significant concerns about public health safety in maritime travel.

Nicole M. Iovine, MD, PhD, noted that there might have been isolated cases previously unrecognized as hantavirus infections. She advised passengers to report any sightings of rodents or droppings to cruise personnel immediately.

The World Health Organization (WHO) stated it is aware of the situation and is supporting a public health event involving the cruise vessel. Two crew members onboard require urgent medical care as well.

Authorities are still determining how the patients contracted the virus. The strain of hantavirus involved in this outbreak remains unknown.