WHO confirms 2nd hantavirus case on Dutch cruise ship in Atlantic
Synopsis
Key Takeaways
The World Health Organization (WHO) has confirmed a second hantavirus infection aboard a vessel in the Atlantic Ocean, bringing the total number of confirmed cases on the Dutch cruise ship to two, operator Oceanwide Expeditions said in a statement on 5 May. The newly confirmed case was a Dutch female passenger who died on 27 April.
What Has Happened on Board
The outbreak has now claimed the lives of a Dutch couple and a German national, while two crew members have fallen ill. A previously confirmed hantavirus patient — a British national — has disembarked the vessel and is currently receiving intensive care in Johannesburg, South Africa. Approximately 150 people remain on board the ship.
According to the Oceanwide Expeditions statement, two crew members — of British and Dutch nationality — continue to present acute respiratory symptoms, with one classified as mild and the other as severe. The operator noted that both require urgent medical care. As of the statement's release, no additional persons with symptoms had been identified on board.
What Is Hantavirus and How Does It Spread
Hantaviruses are a group of viruses carried by rodents that can cause severe and potentially fatal disease in humans. Infection typically occurs through contact with infected rodents or their urine, droppings, or saliva. Human-to-human transmission is considered rare, according to WHO.
Exposure most commonly takes place during activities such as cleaning buildings with rodent infestations or spending time in heavily infested rural environments — including forests, fields, and farms. The presence of hantavirus aboard an ocean-going cruise vessel is notably unusual, as the disease is most commonly reported in rural settings.
Symptoms and Timeline of Hantavirus Pulmonary Syndrome
Hantavirus Pulmonary Syndrome (HPS) is characterised by headache, dizziness, chills, fever, muscle pain, and gastrointestinal problems including nausea, vomiting, diarrhoea, and abdominal pain. These are followed by sudden onset of respiratory distress and hypotension. Symptoms typically emerge 2 to 4 weeks after initial exposure, though they may appear as early as one week or as late as eight weeks following exposure.
What Happens Next
Health authorities have not yet publicly detailed how the rodent exposure may have occurred aboard the vessel, and an investigation into the source of the outbreak is reportedly ongoing. With critically ill crew members still on board and roughly 150 passengers and crew remaining on the ship, the situation continues to be monitored closely by international health officials. The case marks a rare instance of a confirmed hantavirus cluster aboard a maritime vessel, raising questions about biosecurity protocols in cruise operations.