Royal Free Hospital in London will treat a Scottish nurse who has overcome Ebola twice, prior to another ‘late complication’ she suffered from her last infection from the deadly virus.

On Tuesday, the hospital said in a statement that its infectious diseases team is going to conduct the treatment of Pauline Cafferkey. The nurse has undergone treatment for meningitis in last October that she developed from lingering Ebola virus in her system. She contracted the infection for the first time in 2014 when she was in Sierra Leone.

According to the World Health Organization (WHO), in some rare cases, Ebola can endure in the body parts that are not covered by the immune system, like within the eye, in semen, in the brain, or in the spinal cord.

WHO spokeswoman Fadela Chaib said that Ebola survivors require full support to minimize the vulnerability of further spread, mainly through sexual transmission, which has been the culprit for a few recent flare-ups of Ebola in West Africa. Scientists mentioned that many patients suffer long-term side effects, but the case of Cafferkey is unusual.

Dr. Nathalie MacDermott, a clinical research fellow at Imperial College London, said, “It is difficult to know what the likelihood of further relapses is, given the previous unprecedented nature of her situation”.

Earlier, experts suggested that the immune system might have triggered Ebola relapses, when the body gets indulged in fighting another infection. Such a thing may give any persistent virus an opportunity to start replicating.

So far, it hasn’t become clear whether any lingering Ebola has been behind survivors' ongoing medical issues or if the problems can be blamed on the acute illness that patients have recovered previously.

There are thousands of Ebola survivors in West Africa, and among them, many are still suffering from painful side effects, such as issues with their eyes, joints and ears.