Three people who were aboard a cruise ship in the Atlantic Ocean have died of suspected infections of hantavirus, a rodent-borne virus that can cause fatal respiratory illness, the World Health Organization said on May 3.

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...