Efforts Intensify to Contain Hantavirus Outbreak on Cruise Ship

May 10, 2026

75 min

May 10, 2026 07:30

Hantavirus: Case fatality rate, source, prevention — WHO, Spain race to contain Andes strain

## Outbreak on MV Hondius

A rare outbreak of the Andes strain of hantavirus has been reported on the MV Hondius cruise ship, which recently docked in Tenerife, Spain. The virus, known for its severe respiratory effects, has resulted in three fatalities among the seven confirmed cases on board.

## Health Authorities Respond

Global health organizations, including the World Health Organization (WHO), are working to manage the situation. The ship's passengers and crew, totaling 147, are undergoing a controlled evacuation process. Those disembarking will be tested for symptoms before returning to their home countries.

## Source and Transmission

The outbreak is believed to have originated from rodent waste encountered during a shore excursion in Argentina. The Andes strain is unique in its ability to spread between humans, though this requires close contact.

## Risk Assessment

The Centers for Disease Control and Prevention (CDC) states that the risk to the general public remains low, with no cases reported in the United States. However, the virus's high mortality rate, ranging from 25% to 50%, necessitates caution.

## Preventive Measures

While no vaccine exists for hantavirus, early supportive care can improve outcomes. Symptoms typically appear one to six weeks after exposure and include fever, respiratory distress, and gastrointestinal issues.

## Global Context

Hantavirus infections are relatively rare worldwide. In 2025, the Americas reported 229 cases with a 25.7% fatality rate. Europe and Asia also experience cases, though at lower rates. The WHO continues to monitor and support contact tracing efforts globally.

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