WHO chief issues direct message to Tenerife residents after hantavirus cruise ship docks Dr. Tedros Adhanom Ghebreyesus issued a rare direct message to residents of Tenerife after a cruise ship linked to a deadly hantavirus outbreak was allowed to dock on the island following days at sea. 11 May 2026 The head of the World Health Organization (WHO) has issued a rare direct message to residents of Tenerife after a cruise ship linked to a deadly hantavirus outbreak was allowed to dock on the island following days at sea.