By James Gallagher
Health editor, BBC News website
25 February 2016
Their studies on survivors in Liberia showed large numbers had developed weakness, memory loss and depressive symptoms in the six months after being discharged from an Ebola unit.
Other patients were "actively suicidal" or still having hallucinations.
More than 17,000 people in West Africa have survived Ebola infection.
The initial analysis, on 82 survivors, showed most had had severe neurological problems at the height of the infection, including meningitis, hallucinations or falling into a coma.
Six months later, new long-term problems had developed.
About two-thirds had body weakness, while regular headaches, depressive symptoms and memory loss were found in half of patients.
Two of the patients had been actively suicidal at the time of the assessment.
Meanwhile, data presented earlier, at the Conference on Retroviruses and Opportunistic Infections, raised concerns about sexual transmission of the virus in survivors.
It indicated 38% of men had tested positive for Ebola in their semen on at least one occasion in the year after recovering.
And in the most extreme case, Ebola had been detected 18 months later.
Yet most survivors reported being sexually active, with only four in every 100 using a condom.
