During her childhood at Chaikovshi street, Yerevan, Armenia, Adelaida was often very involved in daily care giving and acted as a role model for her younger siblings.

Adelaida, for instance played the piano since age 6 for 7 years and demonstrated quick advancement in performance.

In 1946, she graduated magna cum laude and received the professional degree of doctor of medical practice.

In 1956, she defended her first dissertation (kandidatsakaia disertatcia) and became among the first doctors from Armenia to have postdoctoral training in Moscow.

Avagyan was chosen to travel to Indonesia as an ambassador, guided with the task of reorganize the health care system.

While heading the department, Avagyan also defended her doctoral dissertation in 1976, which was a result of 20 years of research in the biomedical field.