The patient, who is a doctor, was cleared of the disease and released to go home but was taken back after showing symptoms.
According to Sahara reporters, another female doctor has been admitted into a hospital for Ebola.
The health worker, a staff at the Nigerian National Petroleum Corporation (NNPC) clinic in Lagos, is said to have developed symptoms of the disease.
Reports have it that the woman was previously discharged from the hospital and then readmitted when she started showing signs of infection.
Ebola is highly contagious in the later stages and poses a greater risk to family members of the infected and medical staff.