WHO: Hantavirus Cases May Rise, But No Global Outbreak Expected

May 13, 2026

85 min

May 13, 2026 04:30

Hantavirus: More cases 'likely', no sign of a global wave — WHO

## Current Situation

The World Health Organization (WHO) has indicated that while more hantavirus cases are likely, there is no current evidence of a global outbreak. This follows the evacuation of passengers from the cruise ship MV Hondius, where several cases were detected.

## Monitoring and Response

Passengers from the ship are under medical observation, with 18 evacuees being closely monitored in the United States. The situation is described as "contained" but remains fragile. A contact-tracing gap in St. Helena has complicated efforts to manage the spread.

## Cases in the US and France

Confirmed cases have been reported in the US and France. In France, one patient is in a worsening condition. In the US, 16 people are under observation at the University of Nebraska Medical Center, with some housed in a biocontainment unit.

## Global Health Concerns

The WHO has emphasized the seriousness of hantavirus but noted that it is not yet a widespread threat. The organization can advise countries on protocols but cannot enforce them.

## Background on Hantavirus

Hantavirus was first identified in the US in 1993 and is primarily transmitted to humans through contact with infected rodent excretions. Human-to-human transmission is rare but possible with certain strains.

## Challenges in Containment

A significant concern is the lack of contact tracing for passengers who disembarked in St. Helena. This has led to international monitoring efforts. Two Dutch passengers from the ship have died, and a third case has been confirmed.

## US Monitoring Efforts

Nine US states are tracing potential exposures, though no new cases have been confirmed. Authorities are taking precautions due to the virus's potential for unusual transmission patterns in confined environments like cruise ships.

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