Survivors of infection by Ebola virus, already known to face vision, hearing and other problems during their recovery, may also be plagued with health issues such as depression, anxiety and nerve damage that surface after they leave the hospital, according to a small spot survey of victims whose care was managed in the U.S. Some of the signs and symptoms can persist for months, researchers from the Centers for Disease Control and Prevention in Atlanta found. The data, reported in the New England Journal of Medicine, offer a snapshot of what eight patients, most of whom had been discharged at least four months earlier, had experienced - and were continuing to experience - during their recovery.