The head of the World Health Organisation has concluded his visit to Democratic Republic of Congo by briefing the president on the response to the Ebola outbreak, which an aid agency warns is likely much larger than official figures show.
The outbreak, already the third-largest on record, persisted for weeks undetected, say health officials, who are now behind the curve and struggling to bring it under control.
WHO Director-General Tedros Adhanom Ghebreyesus called for more international support to stop the disease's spread before he travelled to Congo's Ituri province where the first cases were confirmed.
