Doctor Michael Jacobs attends a news conference at the Royal Free Hospital in London, Britain October 21, 2015. A Scottish nurse who contracted and initially recovered from Ebola, but then suffered a relapse, has meningitis caused by the virus in her brain, doctors treating her said on Wednesday. Pauline Cafferkey was not reinfected with the Ebola virus, doctors said, but it had persisted in her body since her initial recovery and re-emerged to cause complications in her brain. REUTERS/Stefan Wermuth