Hantavirus Outbreak on MV Hondius Antarctic Cruise

A deadly outbreak of rare hantavirus has struck passengers on the Dutch cruise ship MV Hondius during a weeks-long voyage to Antarctica and nearby islands, spotlighting the rapid rise in tourism to the continent and the risks it poses to its fragile environment.

The ship departed Ushuaia, Argentina, on April 1, according to the World Health Organization. Officials suspect the first infected person contracted the virus before boarding, with no rats reported on board. The WHO is investigating possible human-to-human transmission, said Dr. Maria Van Kerkhove, the agency's director of epidemic and pandemic preparedness. Hantavirus typically spreads through inhaling dust contaminated by rodent droppings. No evidence has emerged of the outbreak contaminating Antarctica itself.

Tourism to Antarctica has surged amid concerns over climate change, including rapid ice melt on the Antarctic Peninsula, one of the fastest-warming regions on Earth. NASA data shows about 149 billion metric tons of ice melted annually from 2002 to 2020. In 2024, more than 80,000 tourists landed on the continent, while 36,000 others observed from ships, per the International Association of Antarctica Tour...