Why this matters: Health authorities across several countries are monitoring potential cases because hantavirus can have a long incubation period. Date: 12 May 2026 Tags: Health, World News, WHO, Infectious Diseases Summary: World Health Organization said there is currently no sign of a larger hantavirus outbreak. WHO chief Tedros Adhanom Ghebreyesus warned more cases could still emerge in coming weeks. Three people linked to the MV Hondius cruise ship outbreak have died. The