Dr. Sahar Ragab Elhadad is currently working as Associate Professor at King Abdelaziz University Jedaha-Saudi Arabia. She obtained her Ph.D. in Immunology and Molecular Biology from Cairo University, Egypt. She also worked as Researcher and Principal Investigator of project at Bio Medical Research center The Egyptian Company for the Biological products and Vaccines, Manager of Genetic Analysis unit at Blood Transfusion Services Company. She also attended number of national and international conferences. She also completed many training courses. She has 8 publications in journals contributed as author/co-author.