WHO chief ends DR Congo visit as group warns Ebola likely spread undetected

The head of the World Health Organization on Monday concluded his visit to Democratic Republic of Congo by briefing the president on the response to the Ebola outbreak, which an aid agency warned was likely much larger than official figures show. The outbreak, already the third-largest on record, persisted for weeks undetected, say health officials, who were behind the curve and ‌struggling to bri