GENEVA — The number of cases of Hantavirus linked to a cruise ship at the centre of an outbreak has increased to 13, the head of the World Health Organization said on Wednesday.“Spain reported a new case among the passengers who are in quarantine, which brings the total number of cases to 13,” WHO chief Tedros Adhanom Ghebreyesus said in a post on X.Among them three died, but there have been no new deaths since May 2, Ghebreyesus said.“The situation remains stable.