The paper has reported the Red Cross has reason to believe Ms Akavi is alive, because at least two people described seeing her in December at a clinic in Sousa, one of the final villages to be held by Isil jihadists.
There have been other credible sightings in Abu Kamal in 2016, Raqqa in 2017 and Mayadin last year, officials with the aid group said.
Some of the witnesses said they saw her performing medical duties at clinics and hospitals under Isil control.
But the final pocket of Isil’s “caliphate”, in Baghuz, eastern Syria, was captured last month and there has been no news.
The ICRC has been putting up its flag around the camps holding those who fled Isil territory. They fear she may be living among the 70,000 inhabitants but too afraid to identify herself.