Genotyping of Blastocystis Species Found in Stool Samples of Some Egyptian Subjects Thesis Submitted in partial fulfillment of M.D. degree in Medical science (Parasitology) By Reham Kamal Mohamed Hassan (M.Sc) Assistant lecturer of Parasitology, faculty of Medicine,Cairo University Supervised by Prof. Dr. Soad Abd El Salam El-Refaie Professor of Parasitology Faculty of Medicine Cairo University Prof. Dr. Hala Salah El-Wakil Professor of Parasitology Faculty of Medicine Ain Shams University Ass. Prof. Mayssa Mohamed Zaki Assistant professor of Parasitology Faculty of Medicine Cairo University Dr. Nahed Fouad Farag Lecturer of Parasitology Faculty of Medicine Cairo University 2012