Hantavirus Tracker

An outbreak tied to the MV Hondius has reached 11 confirmed cases with three deaths, nine of which have been identified as Andes virus; authorities completed passenger evacuation and the ship is sailing to the Netherlands for cleaning and disinfection.

WHO says there is no sign of a larger outbreak, but the long incubation period and recent infection-control lapses — including 12 Radboud staff ordered to quarantine after improper handling and a Spanish patient quarantined at a Madrid military hospital, while a French evacuee remains in intensive care — make additional cases possible and underscore the need for close monitoring and strict infection control.

Tracking: hantavirus

Geography: Global, United States (notably Southwest: New Mexico, Arizona, Colorado, Utah, California), Canada, Mexico, Andes region (Argentina, Chile, Bolivia, Peru), Brazil, China, South Korea, Russia, Scandinavia (Finland, Sweden), Europe (general)

1. Cruise-linked Andes hantavirus outbreak grows to 11 cases, three deaths

Spanish authorities confirmed a new hantavirus case in a passenger quarantined at a Madrid military hospital, as the World Health Organization reported 11 confirmed cases tied to the MV Hondius cruise, including three deaths.

Nine of the 11 cases have been identified as Andes virus; the ship has completed passenger evacuation and is sailing to the Netherlands for cleaning and disinfection.

Twelve staff at Radboud University Medical Center in Nijmegen were ordered to quarantine after improperly handling a positive patient’s blood and urine, though the hospital called the infection risk low.

A French evacuee remains in intensive care in stable condition; WHO Director-General Tedros Adhanom Ghebreyesus said there is no sign of a larger outbreak but noted the long incubation period could produce additional cases in coming weeks.

Key facts:

- 11 confirmed cases aboard MV Hondius, including three deaths.

- Nine of the 11 confirmed cases identified as Andes virus.

- New Spanish case quarantined at Madrid military hospital.

- All other Spanish passengers tested negative.

- MV Hondius returning to Netherlands for cleaning and disinfection.

Why it matters: The cluster demonstrates the need for rapid international coordination in evacuation, testing, and ship decontamination, given cross-border passenger movements.

Hospital biosafety lapses can multiply response costs and worker quarantine burdens, so enforcing specimen-handling protocols is immediately important.

Watch for new confirmed cases during the incubation window and for further operational impacts on receiving hospitals and the cruise operator; clear, consistent risk communication will be critical to limit panic and guide contact tracing and quarantine decisions.

Hantavirusreports