The World Health Organization (WHO) confirmed three deaths on Sunday aboard the polar cruise ship MV Hondius from a hantavirus outbreak, a disease typically transmitted through rodents. The vessel, operated by the Dutch company Oceanwide Expeditions, had set sail from the port of Ushuaia, in Argentina's Tierra del Fuego province, on March 20, bound for the port of Praia in Cape Verde, where its journey was scheduled to conclude on May 4.

The World Health Organization said one case of hantavirus infection has been confirmed, with five more suspected cases under investigation.

The World Health Organization said Sunday that three people have died aboard a cruise ship in the Atlantic Ocean, one a confirmed case of hantavirus, an...